Hasil untuk "Home economics"

Khushbu Bishnoi, Pallavi Moudgil, Deepak Soni et al.

Antibiotics are extensively used in layer flocks for the prevention of diseases and to enhance their growth and production. However, their nonprudent use is leading to the occurrence of residues in eggs. The present study aimed at the detection of tetracycline group residues in egg samples collected from layer farms located in Haryana, India, and human health risk assessment. A total of 100 pooled egg samples were analyzed using High-Performance Liquid Chromatography with Ultraviolet detector for the detection of tetracycline group residues. Out of 100 pooled samples, 13 (13%) were found to be contaminated with tetracycline residues (12 for chlortetracycline and one for tetracycline). Of these, five (38.5%) samples (one for tetracycline and four for chlortetracycline) exceeded the maximum residue limit (MRL) established by Food Safety and Standards Authority of India. The risk assessment based on the per capita availability of eggs in Haryana revealed that the current levels of residues in eggs pose no significant toxicological effects on the consumer’s health. The residues exceeding MRL indicate nonprudent use of antibiotics in veterinary practices, which could lead to the emergence of antibiotic resistance. There is a need to generate awareness among farmers toward judicious antibiotic usage in layer birds and adherence to withdrawal periods to prevent the escalating problem of antibiotic resistance.

Mengli Yao, Jia Liu, Fang Zhou et al.

IntroductionPolyphenol-rich sugarcane extract (PRSE) contains bioactive compounds with potential hypoglycemic properties, but its direct interaction with α-glucosidase has not been explored.MethodsThis study investigated the inhibitory mechanism of PRSE on α-glucosidase using enzyme kinetics. Bioactive compounds with α-glucosidase-binding affinity were identified through biolayer interferometry-mass spectrometry (BLI-MS), and the binding mechanisms were further explored via molecular docking analysis.Results and discussionPRSE was found to inhibit α-glucosidase through a mixed-type mechanism. A total of 29 compounds, including 4 coumarins, 9 phenolic acids, and 16 flavonoids, were identified in the PRSE dissociation solution. Representative compounds included coumarin, kaempferol, apigenin 7-o-neohesperidoside, and vicenin 3. Notably, apigenin 7-o-neohesperidoside and vicenin 3 were identified for the first time as potential α-glucosidase inhibitors.These compounds interacted with key residues of α-glucosidase, such as Asp and Glu, via hydrogen bonding, π-anion interactions, and hydrophobic forces. These findings suggest that PRSE could serve as a promising natural source of α-glucosidase inhibitors. The application of BLI-MS proved effective for screening target bioactive compounds in plant extracts. PRSE may have potential applications in functional foods for postprandial glycemic control and type 2 diabetes prevention.

WANG Hai-yan, WANG Dong, JIANG Xin et al.

The optimal process conditions of Camel oil microcapsules were investigated using the encapsulation rate as the evaluation index, through single-factor and orthogonal experiments. The physicochemical properties, storage stability and photosensitivity indexes of Camel oil microcapsules were also evaluated. The results showed that: (1) the optimal preparation conditions for Camel oil microcapsules were as follows: wall to core volume ratio of 3∶4, emulsifier volume ratio of 1∶2, total wall material volume fraction of 2%, and homogenization speed of 30 000 rpm, and the encapsulation rate of the prepared microcapsules was 92.67%; (2) Camel oil was successfully encapsulated in the composite wall material, with no chemical changes occurring during the encapsulation process; The microcapsules of Camel oil were spherical and uniform in shape. The microcapsule of Camel oil demonstrated good thermal stability when it is below 220 ℃. The oxidation stability of Camel oil microcapsules was much better than that of unencapsulated Camel oil, significantly prolonging the storage time. (3) The pH value of Camel microcapsule face cream was 7.6, and the sensory evaluation scored 21.6 points, with no delamination or demulsification, showing good stability.

James D. Richards, Héctor Cori, Maike Rahn et al.

The human diet provides a range of macronutrients and micronutrients, which are metabolized for energy and used to support all aspects of life. The extent to which these nutrients are absorbed in a form that can be used by metabolic processes, or stored for later use, is termed bioavailability. Certain dietary factors increase the bioavailability of micronutrients: bioavailability can be enhanced by different vitamin forms (e.g., calcifediol is more bioavailable than cholecalciferol; methylfolate is more bioavailable than folic acid), and by the food matrix and nutrient interactions (e.g., fat increases absorption of fat-soluble vitamins; multiple vitamins support iron absorption and metabolism). Conversely, plant-based foods exhibit reduced micronutrient bioavailability, due to entrapment in cellular structures and binding by antagonists such as phytate and fiber. Host factors also impact micronutrient availability. A healthy gastrointestinal microbiota can increase the absorption of vitamins and minerals, and certain life stages (e.g., pregnancy and lactation) are characterized by increased absorptive capacity. In contrast, the elderly exhibit reduced ability to absorb certain vitamins, and bacterial overgrowth/dysbiosis can reduce the availability of several vitamins. Several medications reduce vitamin absorption and status. Reduced bioavailability, poor quality diets, lower micronutrient content in foods due to soil depletion and climate change, and decreasing micronutrient intakes lead to widespread, global deficiencies. This in turn contributes to higher prevalence of non-communicable diseases such as anemia, osteoporosis, cardiovascular disease, and blindness; decreased growth; impaired immunity and increased incidence of infections; and increased mortality rates. Strategies to improve bioavailability and nutrient status are crucial and align with United Nations Strategic Development Goals 2 and 3. Vitamins and minerals added to foods or taken as supplements generally are at least as bioavailable as those endogenously in foods, and often more so. In addition, certain technologies are available to further increase micronutrient bioavailability. These include permeation enhancers, lipid-based formulations, nutrient compounding/encapsulation, and phytase to increase bioavailability of minerals trapped by phytic acid. Solutions such as these will help supply highly absorbable and utilizable vitamins and minerals, help close widespread nutritional gaps, and support adequate nutritional status and optimal health across diverse populations worldwide.

Chongxin Liu, Simona Grasso, Nigel Patrick Brunton et al.

The origin traceability of lamb is a longstanding concern for consumers. Despite the widespread application of untargeted metabolomics in meat origin traceability, challenges remain in achieving rapid and accurate identification of biomarkers. This study utilized untargeted metabolomics to analyse five breeds of geographical indication lamb, obtaining profile data comprising a total of 4139 metabolites. Using random forest recursive feature elimination, 29 potential biomarkers were initially identified, which showed significant breed-specific and production environment-related variations. Upon further assessment, a refined panel of 14 metabolic biomarkers demonstrated optimal accuracy and robustness in tracing lamb origin. When combined with the Naive Bayes algorithm, these biomarkers yielded the highest classification accuracy among all evaluated machine learning methods. The random forest recursive feature elimination presents a practical approach for handling high-dimensional metabolomics datasets compared to previous analytical methods. These findings also provide valuable insights into the development of machine learning-based biomarker panels, greatly enhancing the breed-specific traceability of lamb.

Georgina Noel Marchiori, Elio Andrés Soria, María Eugenia Pasqualini et al.

Background: Cardiovascular risk is modifiable by changes in lifestyle and pharmacological management, with hypertension being a common pathology worldwide. Its treatment must address multiple metabolic targets. Based on the hypothesis that certain antihypertensive medications, such as the commonly used enalapril and losartan, and dietary habits improve hypertension-related changes in carotid structure and cardiometabolic variables, this work aimed to associate these drugs, as well as the Mediterranean diet adherence and non-modifiable biological factors, with changes in carotid intima-media thickness [cIMT] and blood lipids. Methods: Sociodemographic, clinical, biochemical and lifestyle data were collected in a cross-sectional study of 313 subjects under survey due to cardiovascular risk factors, aged 34–83 years (Cordoba, Argentina). Generalised structural equation models were used for analysis. Results: A higher cIMT with age and male sex was confirmed. Women had lower triacylglycerols and saturated fatty acids in serum but higher circulating levels of LDL-C, HDL-C and total cholesterol than men. Also, a higher adherence to the Mediterranean diet was associated with lower triacylglycerols, but higher levels of HDL-C cholesterol and ω-3 polyunsaturated fatty acids (ω-3 PUFAs) in serum. A greater adherence to the Mediterranean diet did not affect cIMT. Enalapril was associated with increased serum ω-3 PUFAs levels, but it did not affect other lipid fractions. Moreover, enalapril may control cIMT, whereas losartan may not. Conclusions: Our data demonstrate that the Mediterranean diet and enalapril are associated with a cardioprotective circulating lipid profile in hypertension. Concerning this, enalapril potentially promotes serum ω-3 PUFAs levels beyond its classical antihypertensive effect, which encourages future clinical studies to confirm it.

EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Vasileios Bampidis, Giovanna Azimonti et al.

Abstract Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety of 27 compounds to provide a milky‐vanilla flavour belonging to different chemical groups, when used as sensory additives in feed for all animal species. Fifteen of the 27 compounds were tested in tolerance studies in chickens for fattening, piglets and cattle for fattening. No adverse effects were observed in the tolerance studies at 10‐fold the intended level. The Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) concluded that the 15 tested compounds were safe for these species at the proposed use level and conclusions were extrapolated to all animal species. For the remaining 12 compounds, read‐across from structurally similar compounds tested in tolerance trials and belonging to the same chemical group was applied. The FEEDAP Panel concluded that these 12 compounds were safe for all animal species at the proposed use level. No safety concern would arise for the consumer from the use of the 27 compounds up to the highest levels considered safe for target animals. No new data were submitted on the safety for the user that would allow the FEEDAP Panel to change its previous conclusion for 5‐methylhept‐2‐en‐4‐one [07.139], 5‐methylfurfural [13.001] and 4‐phenylbut‐3‐en‐2‐one [07.024]. The concentrations considered safe for the target species are unlikely to have detrimental effects on the environment for all the compounds.

Ayu Aprilyana Kusuma Dewi, I Putu Eka Indrawan

The tourism sector has the advantage that it is currently undergoing continuous expansion and diversification compared to the manufacturing sector. Current tourism development in various regions offers innovative services through the application of information and communication technology. Currently, the application of mini dictionary applications is more widely applied in city tourism areas that have complete basic infrastructure, adequate availability of information and communication technology and a comprehensive service system. In the tourism sector in Indonesia has considerable potential and attractiveness in the natural and cultural tourism sector, in the development of tourism the central government through The Ministry of Tourism and Creative Economy/Tourism and Creative Economy Agency in each province has the aim of increasing the number of visits and services. This research will examine each tourist attraction, which in its development has developed as an urban area with the availability of supporting tourism facilities / infrastructure that has been fulfilled. The purpose of this study is to identify the level of readiness of tourist attractions in implementing mini dictionary applications in terms of the availability and quality of basic infrastructure services and ICT and tourist support facilities. This research uses the waterfall process method used to describe the research approach to the analysis process. The results of the analysis show that the level of readiness of the application of mini dictionaries at tourist attractions is stated to be against ready. The readiness of the application of the mini dictionary in terms of the availability and quality of basic infrastructure services and ICT and tourist support, based on the results of a review of all components in its application that can be reviewed from infrastructure, facilities and service systems shows that almost all tourist attractions have shown readiness in basic infrastructure and for ICT infrastructure and tourist support facilities are still in a somewhat ready position. This is due to the inadequate quantity and also ICT that has not been applied in tourism management.

Shunan Ren, Chunjie Wang, Aorigele Chen et al.

IntroductionKoumiss is a fermented horse milk food containing abundant probiotics. Lactobacillus paracasei is a bacterial strain isolated from koumiss that helps regulate the intestinal microbiota. One of the major cause of diarrhea is an imbalance of the intestinal flora. The aim of this study was to investigate whether Lactobacillus paracasei can ameliorate E. coli-induced diarrhea and modulate the gut microbiota.MethodsMouse models of diarrhea were established via intragastric E. coli O8 administration. We then attempted to prevent or treat diarrhea in the mice via intragastric administration of a 3 × 108 CFU/mL L. paracasei cell suspension. The severity of diarrhea was evaluated based on the body weight, diarrhea rate, and index, fecal diameter, ileum injury, hematoxylin-eosin (H&E) staining, and diamine oxidase (DAO) and zonulin expression. Expression of the tight junction (TJ) proteins claudin-1, occludin, and zona occludens (ZO-)1 were detected by immunohistochemistry (IHC). Gastrointestinal mRNA expression levels of interleukin (IL)-6, IL-1β, and tumor necrosis factor (TNF)-α were detected by real-time polymerase chain reaction (RT-PCR). The microbial composition was analyzed by 16s rRNA sequencing.ResultsThe L. paracasei demonstrated excellent therapeutic efficacy against diarrhea. It elevated the TJ protein levels and downregulated proinflammatory cytokines IL-6, IL-1β, TNF-α, and p65, myosin light chain 2 (MLC2), myosin light chain kinase (MLCK). Moreover L. paracasei increased those bacteria, which can product short-chain fatty acid (SCFA) such Alistipes, Odoribacter, Roseburia, and Oscillibacter.ConclusionL. paracasei ameliorated diarrhea by inhibiting activation of the nuclear factor kappa B (NF-κB)-MLCK pathway and increasing the abundance of gut microbiota that produce SCFA.

Quan V. Vuong, Hong Ngoc Thuy Pham, Christopher Negus

Herbal teas, which are a rich and diverse source of polyphenols, have been widely consumed due to their association with various health benefits. Preparation techniques can significantly affect the level of polyphenols in a cup of tea. Thus, this study investigated the impact of different preparation techniques, including brewing time in hot water, microwave-assisted extraction with cold and hot water (cold and hot MAE) for both radiation time and power, and laboratory testing condition on extractability of polyphenols in infusion from a teabag. The results showed that brewing time using hot water significantly affected the extractability of polyphenols and antioxidant activity. Cold and hot MAE conditions also significantly affected the extractability of polyphenols and antioxidant activity from a teabag infusion. Hot brewing at 7 min and cold MAE at full power with second boiled (1.93 min on and 1 min off radiation) are recommended for the preparation of herbal tea from a teabag, as these conditions had comparable extractability of polyphenols and antioxidant activity in comparison with other preparation techniques. There are over 20 major chromatogram peaks, of which 7 were identified as gallic acid, catechin, caffeic acid, ferulic acid, epicatechin gallate, quercetin, and kaempferol, revealing potential health benefits of this herbal tea.

Yvyuan Gong, Rui Dong, Kailong Zhang et al.

Oat roll is a traditional Chinese food made of whole oat flour. The purpose of this work was to investigate the role of guar gum on starch retrogradation and water migration of cooked oat roll during freeze-thaw cycles by low-field nuclear magnetic resonance (LF-NMR) measurement, differential scanning calorimetry (DSC) and so on. The results showed that freeze-thaw cycles affected the migration of strong bound water to weak bound water and free water, and thus deteriorated the quality of products. As the addition of guar gum increased, the water mobility and the consequent water loss caused by the freeze-thaw cycles were significantly reduced. The addition of 0.3 % and 0.5 % guar gum could decrease the number and size of pores in cooked oat roll, enhanced the water absorption and gelatinization capacity. Moreover, hindered rearrangement of starch molecular chains to delay retrogradation by restricting the water mobility. Finally the increase of hardness caused by freeze-thaw cycles was decelerated. However, 1 % added amount of guar gum due to its excessive viscosity, caused hindrance to the water absorption and gelatinization of starch granules. Resulted in a greater increase in hardness and adhesiveness, which reduced the edible quality.

Josiane Aparecida Carneiro, Darla Silvério Macedo

Introdução: existem inúmeras ervas naturais que possuem substâncias com ação antioxidante e anti-inflamatória, compostos fenólicos, flavonoides, alcaloides, tais substâncias atuam no sistema imune, na microbiota intestinal, e em vários processos metabólicos, controlando quadros inflamatórios. A cúrcuma (cúrcuma longa), da família zinberacea também conhecida como açafrão da terra possui vários princípios ativos, o principal deles é a curcumima sendo um potente antioxidante e anti-inflamatório. Objetivo: investigar os princípios ativos da cúrcuma longa sua composição química, atuação em diferentes patologias, formas de administração e biodisponibilidade. Materiais e métodos: foi realizada buscas nas bases de dados PubMed, Scielo e Portal de Periódico Capes utilizando os seguintes descritores: Cúrcuma longa, antioxidantes, alimento funcional. Os critérios de seleção foram trabalhos originais, estudos com humanos, com no mínimo de 15 pessoas por estudo, trabalhos escritos a partir de 2010. Resultados e discussões: foi encontrado um total de 13.720 trabalhos sobre cúrcuma longa e selecionados 18 artigos para realizar a análise final. Os resultados mostram que a cúrcuma apresenta atividade antioxidante e anti-inflamatória, atuando em diferentes patologias com resultados satisfatórios. Conclusão: é possível afirmar que a cúrcuma longa possui vários benefícios contra diferentes patologias, por possuir compostos fenólicos como antioxidantes e anti-inflamatórios ela atua na prevenção e tratamento em várias alterações do metabolismo.

Dae Young Kim, Seung Lyul Oh, Wook Song et al.

PURPOSE Reduced muscular strength is a key player in loss of physical function and quality of life in older adults. It has been reported that eccentric training has positive effects on the preservation of eccentric strength, produces less delayed onset muscle soreness, and has a lower metabolic cost for older individuals. Therefore, the present study investigated the effects of eccentric-based training on skeletal muscle strength and physical function in older adults. METHODS Sixteen healthy older subjects (over the age of 65) participated either in eccentric training group (ETG, n=8) or in conventional resistance training group (CTG, n=8) twice a week for eight weeks. The ETG group performed motorized eccentric training, and the CTG group performed a leg press using air pressure. Physical function and muscular strength assessments were performed before and after 8 weeks. The primary outcomes for physical function included gait speed, stair climbing, and the chair stand test, and the secondary outcomes included muscle strength and power. RESULTS The ETG group demonstrated significant improvements in physical function (gait speed and stair climbing) and muscle strength (isokinetic strength and power in knee tests) (p<.05) compared to the CTG group after 8 weeks. There were no significant differences for chair stand test (p>.05) after 8 weeks. CONCLUSIONS Motorized eccentric-based training was more effective in improving muscle strength and physical function in aged individuals than conventional resistance training, which s suggests that eccentric training is may be more beneficial for older individuals to improve overall physical function.

Katiene da Silva Melo, Kleres Luciana Gomes Dias da Silva, Milena Maia Dantas dos Santos

Introdução: A avaliação do estado nutricional é o principal instrumento para identificar distúrbios nutricionais em todos os ciclos da vida. Objetivo: Avaliar o estado nutricional, consumo alimentar e nível socioeconômico das crianças que frequentam a rede pública de ensino do município de Caetés-PE. Materiais e Métodos: Trata-se de uma pesquisa descritiva com abordagem quantitativa de caráter transversal. Para diagnóstico do estado nutricional foram coletadas medidas antropométricas, através de balança eletrônica e estadiomêtro, e a classificação ocorreu de acordo com as novas curvas de crescimento para a população, proposta pela Organização Mundial de Saúde. Para analisar o consumo alimentar e o perfil socioeconômico foram utilizados dois questionários. Resultados: Foram avaliadas 106 crianças, dessas 64,15% eram pré-escolares e as demais escolares. A prevalência de eutrofia correspondeu a 82%, seguida de excesso de peso com 14% e de magreza com 4% da amostra total. A maioria das crianças apresentaram baixa ingestão de frutas, verduras, legumes, vísceras, leite e derivados. A análise do perfil socioeconômico apontou um contexto de vulnerabilidade social, devido ao grande número de responsáveis com baixa escolaridade e desempregados Discussão: Apesar da prevalência de eutrofia, é preocupante o número de crianças com excesso de peso que são afetadas pela a insegurança alimentar, devido ao grau socioeconômico. Conclusão: Houve relevante associação entre a inatividade física, a baixa qualidade da dieta e o elevado índice de excesso de peso. Diante disso, é necessária a promoção de estratégias que cessem os fatores obesogênicos encontrados, pois esses favorecem o surgimento de desordens clínicas e nutricionais.   Palavras-chave: Avaliação nutricional. Criança. Consumo alimentar. Fatores socioeconômicos.   ABSTRACT The assessment of nutritional status and food consumption of preschool and school children in Caetés-PE Introduction: Nutrition status assessment is the primary tool for identifying nutritional disorders in all life cycles. Objective: To evaluate the nutritional status, food consumption and socioeconomic status of children who attending the public school system in the municipality of Caetés-PE. Materials and Methods: This is a descriptive research with quantitative approach of transversal character. For the diagnosis of nutritional status, the anthropometric measures were collected through electronic scales and stadiometer, and the classification was performed according to the new growth curves for the population, proposed by the World Health Organization. To analyze food consumption and socioeconomic profile it was used two questionnaires. Results: It was evaluated 106 children, of whom 64.15% were preschoolers and the others were school ages. The prevalence of eutrophy corresponded to 82%, followed by overweight with 14% and thinness with 4% of the total sample. The majority of the children presented low intake of fruits, vegetables, vegetables, viscera, milk and derivatives. The analysis of the socioeconomic profile pointed a context of social vulnerability, due to the large number of responsible with low schooling and unemployed. Discussion: Despite the prevalence of eutrophication, the number of overweight children affected by food insecurity is worrisome due to the socioeconomic level. Conclusion: There was a relevant association between physical inactivity, the low quality of the diet and the high index of overweight. Therefore, it is necessary to promote strategies that eliminate the obesogenic factors found, since these favor the emergence of clinical and nutritional disorders.

Muhammad Waseem Mumtaz, Mizher Hezam Al-Zuaidy, Azizah Abdul Hamid et al.

The use of antioxidant-rich medicinal plants having the potential to reduce oxidative stress and postprandial hyperglycemic pressure is one of the most promising option for the management of diabetes. This study presents information on metabolite profiling and in vitro anti-diabetic effects of leaf extracts of Ficus benjamina. The DPPH (2, 2-diphenyl-1-picrylhydrazyl radicals) assay was performed to determine the in vitro antioxidant potential of the plant extracts. The anti-diabetic effects were investigated by evaluating inhibitory properties of F. benjamina leaf extracts towards carbohydrate hydrolyzing enzymes, i.e., α-glucosidase and α-amylase, whereas 1H NMR and UHPLC-QTOF-MS/MS analytical methods were employed for metabolite profiling of F. benjamina leaf extracts. Among 40, 60, 80, and 100% ethanolic leaf extracts of F. benjamina, 80% ethanolic extract exhibited the highest antioxidant activity based upon its DPPH radical scavenging ability (IC50 value: 63.71 ± 2.66 µg/mL). The 80% ethanolic leaf extract of F. benjamina also proved to be the most efficient α-glucosidase and α-amylase inhibitor with IC50 values of 9.65 ± 1.04 µg/mL and 13.08 ± 1.06 µg/mL, respectively; these values were even better than acarbose with α-glucosidase inhibition activity (IC50 = 116.01 ± 3.83 µg/mL) and α-amylase inhibition activity (IC50 = 152.66 ± 7.32 µg/mL). Moreover, a total of 31 metabolites were identified in F. benjamina leaf extract, which may have the potential to contribute to its antioxidant and inhibitory properties against carbohydrate hydrolyzing enzymes. The findings of this study depict F. benjamina leaf extracts as a promising α-glucosidase and α-amylase inhibitor, and therefore, can be utilized for the development of anti-diabetic functional diets/nutra-pharmaceuticals.

Diriba Welteji, Kerime Mohammed, Kedir Hussein

Abstract Background Developing countries in general and Ethiopia in particular are affected by a growing problem of food insecurity. Millions of individuals and households especially the rural poor are the main victims of the problem. The government of Ethiopia together with other development partners launched the Productive Safety Net Program (PSNP) in 2005 to help chronically food-insecure households. This study discusses the role of PSNP on the improvement in consumption needs and asset base of the households, effect on community development and determinants of food insecurity level of beneficiaries. Methodology Three Woredas have been selected agro-ecologically. Both qualitative and quantitative data-generating techniques were employed. Qualitative data were analyzed thematically and using narration. Frequency distribution table and t test were used. Logistic regression was employed to analyze the determinants of food insecurity. Results and conclusion Results indicated that PSNP was helping beneficiaries for consumption smoothing, asset accumulation, and development of the local community. The effectiveness of PSNP was significantly determined by age and education level of the household head and occurrence of shocks on the last five consecutive years. The practice of PSNP was challenged by a lack of monitoring and evaluation of structures, low payment and limited awareness of beneficiaries. To assure the positive role of PSNP, culture of savings and accumulation of assets, engagement of beneficiary households in diversified asset building livelihood strategies, targeting and minimizing wrong inclusion and exclusion, and the management as well as monitoring practices of locally constructed community development infrastructures should be enhanced.

Roy Jensen

Camilo Augusto Agudelo Perdomo, Armando Torrente Trujilllo, Adriana Vargas

El propósito de la investigación fue evaluar las pérdidas de suelo en parcelas experimentales del corredor biológico entre Parques Nacionales Naturales Puracé y la Cueva de los Guácharos en el departamento del Huila, en cultivos con manejo tradicional frente a manejo alternativo, resultados que fueron validados mediante la Ecuación Universal de Pérdidas de Suelo. Se realizó la medición de las pérdidas de suelo y se registraron las lluvias en un periodo de cuatro meses, calificando el periodo de lluvias como suaves, resultando mayor la erosión en el cultivo de café convencional (1,14 t.ha -1 .año -1 ), seguido de mora convencional (0,99 t.ha -1 .año -1 ) con diferencias significativas atribuidas al manejo de las coberturas. En cultivos con prácticas de labranza cero resultaron las menores pérdidas (0,37 t.ha -1 .año -1)en comparación con el manejo convencional (0,53 t.ha -1 .año -1 ), estos últimos incluyen quema, remoción de la cobertura y movimiento superficial del suelo. En los tratamientos con ganadería extensiva y semi-estabulada no se presentaron diferencias significativas en la erosión del suelo. No existe correlación significativa entre las pérdidas de suelo estimadas USLE y las medidas en las parcelas de escorrentía.     Para citar este artículo Agudelo, C., Torrente, A. y Vargas, A. (2015). Evaluación comparativa de pérdidas de suelo en el corredor biológico entre parques nacionales Puracé y Cueva de los Guácharos en el Huila. Rev. Colomb. Investig. Agroindustriales, 2(1), 41-52. DOI: http://dx.doi.org/10.23850/24220582.168

Joseph P. Newhouse

R. Dornbusch