Hasil untuk "Home economics"

Dengwen Pang, Meizhu Chen, Chengwen Xiao et al.

Fengxia Tang, Juntao Tan, Fangdao Qiu et al.

Under the context of global warming, the continuous rise in greenhouse gas emissions has become a critical concern. As a significant source of greenhouse gas emissions, the carbon emissions from agriculture exert a considerable impact on climate change, which cannot be overlooked. Agricultural technological innovation is crucial for reducing carbon emissions. Examining how the scale and structure of agricultural technological innovation impact agricultural carbon emissions is important for achieving the Carbon Peaking and Carbon Neutrality Goals. This research is based on data from 30 provinces in China over the period of 2013–2022. It utilizes fixed-effects models, moderation models, and spatial econometric models to empirically investigate the impact mechanisms of the scale and diversity of agricultural technological innovation on agricultural carbon emissions. The research findings reveal that: (1) China's agricultural carbon emissions exhibit an overall declining trend, while the scale of agricultural technological innovation and the level of technological diversity demonstrate a general upward trend. However, regional disparities exist. The total agricultural carbon emissions in the central regions remain relatively high, whereas the scale of agricultural technological innovation and the level of diversity decrease progressively from the southeastern coastal areas toward the inland regions. (2) The scale of agricultural technological innovation and the diversity of technologies have a significant inhibitory effect on agricultural carbon emissions. (3) Mechanism analysis reveals that the scale of agricultural technological innovation positively moderates the impact of technological diversity on agricultural carbon emissions. Specifically, an increase in the scale of technological innovation enhances the inhibitory effect of diversity on carbon emissions. (4) Spatial effect analysis indicates that there is a significant spatial correlation between the scale and diversity of agricultural technological innovation. The scale of agricultural technological innovation has a negative spatial spillover effect on agricultural carbon emissions in adjacent areas. The increase in the scale of local technological innovation helps to spread agricultural technological resources to neighboring areas and reduce their agricultural carbon emissions. This study enriches the research on the impact of agricultural technology innovation on agricultural carbon emissions, providing theoretical references for promoting agricultural technology innovation and sustainable agricultural development.

Ajunwa Edache, Lucy Kator Joegelleh

This study evaluated the impact of consumer education programs in influencing consumer behavior in Makurdi Metropolis, Benue State, Nigeria. The study was motivated by the increasing concern that many consumers in the area lack adequate knowledge about agricultural product, such as quality, safe handling, labeling, and purchasing decisions, leading to exposure to unsafe and substandard goods. Five objectives guided the study. A descriptive survey research design was adopted for the study. The population consisted of 350 individuals drawn from consumers, traders, farmers, and agricultural extension officers in the study area. A sample of 188 respondents was selected using the Taro Yamane formula. The results revealed that organized and media-based consumer education programs were the major sources of awareness in the area, with radio and television serving as key channels of communication (Mean = 3.12). Respondents found the information from consumer education programs easy to understand and apply (Mean = 2.88), indicating that message clarity enhanced participation. It was concluded that consumer education programs have improved consumer awareness in purchasing behavior. It was recommended that more emphasis be laid on collaborative, media-driven, and continuous education programmes.

Nontobeko Xolisiwe Zulu, Angela Parry-Hanson Kunadu, Eugenie Kayitesi et al.

The demand for dried starter cultures that are specific to indigenous fermented food products is increasing. In most cases, skim milk (SM) powder is used as a cryoprotectant for microbial cell protection during the preparation of starter cultures. However, the extent of cell protection during freeze-drying and the fermentation efficacy of dried cultures are dependent on the type of microbial strain and carrier media, hence the need to investigate the protective effects of alternative carrier media. This study evaluated the fermentation potential of lactic acid bacteria (LAB) preserved in coconut (CCN) powder and SM powder during ting (traditional fermented sorghum) production. Ting was fermented with single and mixed strains of Lactobacillus plantarum and Lactobacillus brevis. The pH, total titratable acidity (TTA), functional groups (Fourier transform infrared spectroscopy [FTIR]), microbial quality, and consumer acceptability were monitored during fermentation. Ting prepared with LAB strains preserved in SM had a more rapid reduction (p>0.05) in pH and lower final pH than ting prepared with LAB preserved in CCN. Mixed LAB strains showed a rapid reduction in pH of ting compared to single LAB strains and ting prepared with spontaneous fermentation. The highest TTA (3.57%) was observed with mixed LAB after 48 h on both SM and CCN ting. FTIR showed similar functional groups corresponding to O–H and phenolic compounds for both SM and CCN ting. The highest increase in LAB counts (up to 10 log CFU/mL) occurred in ting prepared with mixed strains of both CCN and SM, while the least increase occurred with spontaneously fermented ting. Enterobacteriaceae, yeasts, and molds were not detected in all the fermented samples. With consumer acceptability, CCN ting was the most preferred sample with the highest overall score (6.95), followed by the SM ting sample (5.67). In conclusion, this work indicates that the LAB strains preserved in CCN result in comparable fermentation performance to that of SM and produce ting that is preferred by consumers. Therefore, CCN should be considered as a carrier medium for the development of ting starter cultures.

Damrongvudhi Onwimol, Pongsan Chakranon, Kris Wonggasem et al.

Hyperspectral imaging was employed to capture spectral information from entire trays of hemp seeds. Individual seed spectral data was extracted using a region-of-interest analysis, isolating each seed for detailed examination. To simplify the analysis and reduce computational complexity, a subset of key spectral wavelengths was selected using a successive projection algorithm. Deep learning models were trained on these selected wavelengths to directly learn patterns from the raw spectral data. The performance of these deep learning models was compared to traditional machine learning approaches. Particularly, an EfficientNetB0 convolutional neural networks achieved the most impressive results, demonstrating a high sensitivity of 98.85, a specificity of 99.22, and a Matthews correlation coefficient of 0.98. It indicated its ability to accurately distinguish between high-vigor and low-vigor hemp seeds. Our findings demonstrated the potential of data-driven models trained on hyperspectral imaging data for non-destructive assessment of hemp seed vigor. This approach offers an advantage over traditional methods, which often involve destructive testing or time-consuming manual evaluation. By enabling rapid and objective seed selection, this technology can improve the efficiency of hemp seed production and ultimately lead to higher crop yields. This innovative approach has the potential to revolutionize the agricultural industry by providing a powerful tool for assessing seed quality and optimizing crop production.

Claudia A Carrillo, Claudia Arriaga, Chloe Smith et al.

Karolina Krupa-Kotara, Karolina Krupa-Kotara, Agnieszka Gdańska et al.

BackgroundAging populations face health and psychosocial challenges that can affect their quality of life. This study aimed to examine the relationship between self-esteem and selected health indicators among older women in Poland.MethodsSix hundred women aged 60+ attending Third Age Universities were surveyed. BMI, waist-to-hip ratio (WHR), daily physical activity (steps), fasting glucose and cholesterol levels, and self-esteem (Rosenberg Self-Esteem Scale) were assessed.ResultsAdverse health indicators such as high BMI, WHR, and elevated glucose were associated with lower self-esteem (p < 0.05). Cholesterol levels showed no significant relationship.ConclusionThese findings suggest that maintaining a healthy lifestyle and metabolic balance may contribute to better psychological wellbeing for older women. Community-based physical activity initiatives may support psychological wellbeing among postmenopausal women.

Huifen Wang, Wei Wei, Wei Wei et al.

BackgroundThe eradication regimen for Helicobacter pylori (H. pylori) infection can induce gut dysbiosis. In this open-label, prospective, and randomized clinical trial, we aimed to assess the effects of fucoidan supplementation on the eradication rate and gut microbial homeostasis in the context of quadruple therapy, as well as to investigate the combined effects of fucoidan and synbiotics supplementations.MethodsEighty patients with H. pylori infection were enrolled and randomly assigned to one of four treatment groups: the QT (a 2-week quadruple therapy alone), QF (quadruple therapy plus a 6-week fucoidan supplementation), QS (quadruple therapy plus a 6-week synbiotics supplementation), and QFS (quadruple therapy with a 6-week fucoidan and synbiotics supplementation), with 20 patients in each group. The QT regimen included rabeprazole, minocycline, amoxicillin, and bismuth potassium citrate. The synbiotics supplementation contained three strains of Bifidobacterium, three strains of Lactobacillus, along with three types of dietary fiber. All of the patients underwent 13C-urea breath test (13C-UBT) at baseline and at the end of the 6th week after the initiation of the interventions. Fresh fecal samples were collected at baseline and at the end of the 6th week for gut microbiota analysis via 16S rRNA gene sequencing.ResultsThe eradication rates among the four groups showed no significant difference. In the QT group, a significant reduction in α-diversity of gut microbiota diversity and a substantial shift in microbial composition were observed, particularly an increase in Escherichia-Shigella and a decrease in the abundance of genera from the Lachnospiraceae and Ruminococcaceae families. The Simpson index was significantly higher in the QF group than in the QT group. Neither the QS nor QFS groups exhibited significant changes in α-diversity or β-diversity. The QFS group was the only one that did not show a significant increase in the relative abundance of Escherichia-Shigella, and the relative abundance of Klebsiella significantly decreased in this group.ConclusionThe current study provided supporting evidence for the positive role of fucoidan and synbiotics supplementation in the gut microbiota. The combined use of fucoidan and synbioticss might be a promising adjuvant regimen to mitigate gut dysbiosis during H. pylori eradication therapy.

Bela Scapec, Jozo Grgic, Dorian Varovic et al.

Background Caffeine is one of the most popular ergogenic aids consumed by athletes. Caffeine’s ergogenic effect has been generally explained by its ability to bind to adenosine receptors, thus modulating pain and reducing perceived exertion. Another pharmacological agent that may improve performance due to its analgesic proprieties is paracetamol. This study aimed to explore the effects of caffeine, paracetamol, and caffeine + paracetamol consumption on muscular endurance, strength, power, anaerobic endurance, and jumping performance.Methods In this randomized, crossover, double-blind study, 29 resistance-trained participants (11 men and 18 women) ingested either a placebo, caffeine (3 mg/kg), paracetamol (1500 mg) or caffeine + paracetamol 45 min before the testing sessions. The testing sessions included performing the bench press exercise with 75% of one-repetition maximum to momentary muscular failure, isokinetic knee extension and flexion at angular velocities of 60°/sec and 180°/sec, Wingate, and countermovement jump (CMJ) tests.Results Compared to placebo, isolated caffeine ingestion increased the number of repetitions performed in the bench press (p = 0.005; d = 0.42). Compared to placebo, isolated caffeine ingestion and/or caffeine + paracetamol consumption was ergogenic for strength (torque), muscular endurance (total work), or power in the isokinetic assessment, particularly at slower angular velocities (p = 0.027 to 0.002; d = 0.16 to 0.26). No significant differences between the conditions were observed for outcomes related to the Wingate and CMJ tests.Conclusion This study provided novel evidence into the effectiveness of caffeine, paracetamol, and their combination on exercise performance. We found improvements in muscular endurance, strength, or power only when caffeine was consumed in isolation, or in combination with paracetamol. Isolated paracetamol consumption did not improve performance for any of the analyzed outcomes, thus calling into question its ergogenic potential.

Kandi Sridhar, Minaxi Sharma, Baskaran Stephen Inbaraj

NIU Pei-rong, LI Wei, XIA Mei-ru et al.

In this experiment, the peptides were obtained by enzymatic digestion of wheat germ proteins from river sets using neutral protease, trypsin and pepsin. In vitro antioxidant capacity of samples was determined and their polypeptides distribution was determined using polyacrylamide gel electrophoresis (SDS-PAGE). The results showed that germ protein and polypeptides concentrations were positively correlated with antioxidant capacity.The antioxidant capacity of the peptides obtained by enzymatic digestion of neutral protease at different concentrations was significantly higher than that obtained by enzymatic digestion of pepsin and trypsin (P<0.05), and their reducing capacity, 2,2-biazo-bis(3-ethyl-benzothiazole- 6-sulfonic acid) diammonium salt (ABTS+), 1,1-diphenyl-2-picrylhydrazyl (DPPH) clearance was up to (1.17±0.004) 1.0 mg/mL, (84.82%±0.87%) 1.5 mg/mL and (55.01%±0.01%) 1.0 mg/mL, respectivety, and their ABTS+ and DPPH radical scavenging rates were significantly higher than those of germ proteins (p<0.05). In addition, for the hydrolysis capacity of different proteases differs, pepsin had the greatest hydrolysis capacity while neutral protease had the least. The antioxidant capacity of germ protein polypeptides correlated with their molecular weight, but it is not necessarily the case that the smaller the molecular weight of a protein peptide had the better antioxidant effect. The results of these experiments provide a theoretical basis for further research on the antioxidant polypeptides of wheat germ in the Hetao.

Beihui He, Linghao Dai, Li Jin et al.

Rubus chingii Hu (Chinese Raspberry), known as Fu-Pen-Zi in Chinese, a woody perennial plant of the genus Rubus in the Rosaceae family, has specific nutritional and medicinal values, which is considered food-medicine herb in China for thousands of years to treat impotence, premature ejaculation, enuresis, frequent urination, and other diseases. This review aims to summarize recent advances in the bioactive components, pharmacological effects, and drug development and utilization of Rubus chingii Hu, hoping to provide useful support for its further research and clinical application. The bioactive components in Rubus chingii Hu contain mainly terpenoids, flavonoids, alkaloids, phenolic acids, polysaccharides, and steroids. The main pharmacological effects are their anti-oxidant, anti-inflammatory, and anti-tumor capacity on human health. Rubus chingii Hu is a very valuable food-medicine herb. The development of Rubus chingii Hu–related drugs is relatively single, which is limited to traditional Chinese medicine and prescriptions. Therefore, it is vital to pay interest to Rubus chingii Hu and its bioactive components in the future and extend its scientific application.

Yeliz Demir, Serkan Bertan

Abstract This research aims to determine the contents, cooking, and serving styles of local Turkish coffee kinds in Türkiye and to reveal their differences from traditional Turkish coffee. In addition, the distribution of local Turkish coffee kinds determined according to cities and regions was determined. Document analysis was applied to determine the features of local Turkish coffee kinds. In the document analysis, local Turkish coffee kinds are divided into three basic categories according to the codes of “coffee content,” “serving style,” “cooking method,” and “difference from traditional Turkish coffee.” Turkish coffee in the first category is prepared without using coffee powder, and local Turkish coffee kinds in the second category differ from traditional Turkish coffee with their features such as the coffee beans are roasted and ground, the presentation of the coffee, the degree of cooking, and the cooking method of the coffee. Different products (local products) are mixed into the coffees in the last local Turkish coffee category. Additionally, local Turkish coffees specific to cities were collected under the “city/region authenticity” code. Black Cumin Coffee, Mırra Coffee, Menengic Coffee, Kenger Coffee, Turkish coffee cooked in a cup, and Dibek Coffee are common local Turkish coffee kinds in some cities and regions.

Erin Wolgamuth, Salwa Yusuf, Ali Hussein et al.

Abstract Flatbreads are traditional food products of ancient origin, still produced and appreciated in their original locations and beyond, having spread through historical and modern migration. While the history and preparation of Somali flatbread, known as canjeero in southern regions and laxoox in northern regions, has been shared orally for generations among the women who cook it at home, it has not been the object of scientific studies. An in-field study was therefore carried out in various cities in Somalia, Somaliland, and Ethiopia’s Somali State to document the formulation, production methods, and consumption patterns of this Somali flatbread. Laxoox/canjeero production was found to be relatively homogenous, but the data revealed two significant divergences: in bread formulation and in the procedure for structure development. These divergences result from disparities in the mechanization of bread production between rural and urban, and from the destruction of infrastructure, including food processing machines in public markets, leading up to the Somali civil war. An original framework of four production styles (“heritage,” “new heritage,” “innovative,” and “global”) illustrates these divergences in detail. Heritage production is linked to the historic era of nomadic Somali pastoralism, while the other three styles originated in civil conflict and continue today. Graphical abstract

Haibo Yang, Pingluo Xu, Wei Song et al.

In this study, total phenols (TP) and proanthocyanidins (PAs) in the leaves and branches of Cinnamomum camphora were investigated, and isolated PAs were determined using reversed-phase high performance liquid chromatography electrospray ionization mass spectrometry (HPLC-ESI-MS). The anti-tyrosinase and antioxidant activities were also evaluated. Furthermore, scanning study and dihydroxyphenylalanine (L-DOPA) oxidation were performed to further analyze the inhibition mechanism of PAs on tyrosinase catalytic activity. PAs had strong inhibitory effects on tyrosinase monophenolase activity, with effectively prolonged the delay time and decreased the steady-state of monophenolase activity. For diphenolase activity, PAs both showed reversible and mixed inhibition. Moreover, the PAs showed strong antioxidant activities in scavenging 2,2-Diphenyl-1-picrylhydrazyl (DPPH), 1,2ʹ-azino-bis(3-ethylbenzthiazoline-6-sulphonicacid) (ABTS) and the ferric reducing antioxidant power (FRAP) assays. The PAs in leaves showed stronger anti-tyrosinase and antioxidant capacity, suggesting that C. camphora may be a good resource for tyrosinase inhibitors and antioxidants. This study could provide a scientific basis for the resource utilization of C. camphora and the development of new natural tyrosinase inhibitors and antioxidants in medical, cosmetic, food, and agricultural industries.

Jose Libardo Tapiero-Cuellar, Guillermo Salamanca-Grosso, Maria Andrea Benitez

The (Zingiber officinale) is a plant of the zingiberáceas family, its rhizome is widely used in gastronomy for its pungent aroma and flavor. Essential oils (EO) are natural compounds; they have 25 to 70 components with different concentrations. Α-Zingiberene and α-Felandrene are the main components with volumes between 20% and 70%. For the extraction of the AE samples from 10 Colombian geographical locations were used, obtained by microwave radiated hydrodistillation (MWHD) and stored at 4°C in amber vials. 50 µL of EA and 1.0 µL of (n-tetradecane) internal standard were dissolved in dichloromethane to a final volume of 1.0 mL. The EO components were performed on a triple quadruple mass detector gas chromatograph (BRUKER 450GC-320). For its antioxidant activity (AA) the methodology of Prior for DPPH* and ABTS+ was used. The extractions showed a yield between 0.053 and 0.109 percent; and 300 g of sample at 700 watts and 40 minutes of process were used. The chromatographic profile showed 43 components referring to ketones, alcohols, cyclic ethers, aldehydes and 23 hydrocarbons, with α-Zingiberene being the majority, considered as a molecular marker of this EO. The AA presents significant differences between the samples evaluated for the localities studied.

Leticia Goñi, Liz Ruiz, Estíbaliz Goñi et al.

VIII Congreso Iberoamericano de Nutrición. ¿Nutrición basada en la videncia o en la evidencia?

European Food Safety Authority (EFSA), Harrie Buist, Peter Craig et al.

Abstract This guidance on the assessment of dermal absorption has been developed to assist notifiers, users of test facilities and Member State authorities on critical aspects related to the setting of dermal absorption values to be used in risk assessments of active substances in Plant Protection Products (PPPs). It is based on the ‘scientific opinion on the science behind the revision of the guidance document on dermal absorption’ issued in 2011 by the EFSA Panel on Plant Protection Products and their Residues (PPR). The guidance refers to the EFSA PPR opinion in many instances. In addition, the first version of this guidance, issued in 2012 by the EFSA PPR Panel, has been revised in 2017 on the basis of new available data on human in vitro dermal absorption for PPPs and wherever clarifications were needed. Basic details of experimental design, available in the respective test guidelines and accompanying guidance for the conduct of studies, have not been addressed but recommendations specific to performing and interpreting dermal absorption studies with PPPs are given. Issues discussed include a brief description of the skin and its properties affecting dermal absorption. To facilitate use of the guidance, flow charts are included. Guidance is also provided, for example, when there are no data on dermal absorption for the product under evaluation. Elements for a tiered approach are presented including use of default values, data on closely related products, in vitro studies with human skin (regarded to provide the best estimate), data from experimental animals (rats) in vitro and in vivo, and the so called ‘triple pack’ approach. Various elements of study design and reporting that reduce experimental variation and aid consistent interpretation are presented. A proposal for reporting data for assessment reports is also provided. The issue of nanoparticles in PPPs is not addressed. Data from volunteer studies have not been discussed since their use is not allowed in EU for risk assessment of PPPs.

European Food Safety Authority

Abstract Following a request of the European Commission, the European Food Safety Authority (EFSA) evaluated the concerns raised by Bulgaria and the accompanying documentation submitted under Article 34 of Regulation (EC) 1829/2003 in support of its request to prohibit the cultivation of the genetically modified maize MON 810 in the European Union. EFSA concludes that neither the arguments put forward by Bulgaria nor the documentation reveal new scientific evidence, in terms of risk to human and animal health or the environment, that would support the adoption of an emergency measure on the cultivation of maize MON 810 under Article 34 of Regulation (EC) 1829/2003. In the absence of new relevant scientific evidence, EFSA concludes that its previous risk assessment conclusions and risk management recommendations on maize MON 810 and those of its GMO Panel remain valid and applicable.

A. Niehof