Journal of Food, Nutrition and Diet Science最新文献

{"title":"Factors influencing consumer choices and food safety awareness in street-vended foods: A case study of Meru town, Kenya","authors":"J. Mwove, J. D. Orwa, Joyce Wangui Njoki, Francis Gichuho Irungu, Fredrick G. Kiruki","doi":"10.55976/fnds.22024125794-106","DOIUrl":"https://doi.org/10.55976/fnds.22024125794-106","url":null,"abstract":"The consumption of street-vended foods is common in many developed and developing countries, including Kenya. This study investigated the food safety knowledge of street food consumers (SFCs) and the factors influencing their choices of street-vended foods in Meru town, Kenya. A total of 456 respondents were randomly selected from different streets in Meru town to participate in this study. Data collection was carried out through in-person interviews using pretested structured questionnaires. The results of the survey revealed that a significant proportion, 79.2% of the participants were consumers of street vended foods. In addition, the study found a gender disparity that 58.8% of respondents were male and most of them had a primary or secondary education levels, while the majority of the female respondents reported that they had obtained college education. Furthermore, the majority of the respondents were self-employed (48.7%) and earned between KES 10,000 (USD 74) and KES 20,000 (USD 148) per month. The study also found that the average weekly expenditure on street-vended foods was estimated at KES 694.25 (USD 5.14). There was a highly significant association between the income range of the SFCs and their education level (p < 0.001), age category (p < 0.001) and employment category (p < 0.001). Education level (p=0.0274) and age (p=0.0205) of the SFCs were significant factors in predicting the personal hygiene knowledge scores of the SFCs. About 31.6% of consumers reported being sick once or twice a month after eating street foods. The study revealed that convenience, cost, quantity, hygiene and service were important factors considered by SFCs when purchasing street vended foods. The findings of this study offer valuable insights that can inform the development of appropriate strategies and policies aimed at promoting food safety awareness and ensuring the availability of safe and hygienic street-vended foods in Meru town, Kenya.","PeriodicalId":513296,"journal":{"name":"Journal of Food, Nutrition and Diet Science","volume":"46 38","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141269614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of omega-3 and vitamin D supplementation in patients with breast cancer: a systematic review","authors":"Lailton Oliveira da Silva, Victor Da Silva, Anderson Weiny Barbalho Silva, José Juvenal Linhares","doi":"10.55976/fnds.22024124666-75","DOIUrl":"https://doi.org/10.55976/fnds.22024124666-75","url":null,"abstract":"Breast cancer (BC) is the leading cause of death among women with cancer worldwide. Nevertheless, key challenges must be addressed, as new therapies can be employed to support the main treatment and enable a better quality of life, survival and prognosis. In this paper, we described the role of omega-3 and vitamin D supplementation in patients during the main treatment. This is a systematic review of the literature from randomized clinical trials, following the PRISMA and PICOS guidelines for elaborating the guiding question and constructing the results. Our findings in this review reveal and support that omega-3 and vitamin D supplementation can help women with metastatic disease who are not receiving hormone therapy during BC treatment for HR+ (hormone receptor positive). They improve immunity and antioxidant capacity and decrease cardiometabolic effects. This intervention is safe and can be employed as an adjuvant to the other main treatments.","PeriodicalId":513296,"journal":{"name":"Journal of Food, Nutrition and Diet Science","volume":" November","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140989691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative study NFC and RFC on nutritional and sensory profile of guava juices","authors":"Brunda Gurauraja Rao, Urs Kavyashree, Sachin Shetty Shilpa, S. Kirti","doi":"10.55976/fnds.22024123541-50","DOIUrl":"https://doi.org/10.55976/fnds.22024123541-50","url":null,"abstract":"Guava juice, with its distinctive flavour and being rich in vitamin C, lycopene, β- carotene and flavonoids, is known for its health-promoting properties, such as its antioxidant capacity and cancer-preventive effects. As retention of nutrient composition is an important criterion in juice processing, especially loss of nutrients post vacuum concentration and reconstitution, a comparative study was conducted on Not From Concentrate (NFC) and Reconstituted From Concentrate (RFC) juice of Bangalore pink guava. Significant loss of antioxidant activity (p ≤ 0.05), vitamin C (18.8 %) and β-carotene (13. 0%) (p ≤ 0.01) was observed in guava RFC as compared to guava NFC, which might be caused by heating of juice under vacuum concentration. The iron bioavailability of guava NFC was significantly (p ≤ 0.01) higher by 38 % in Caco-2 cell studies. The sensory profile of NFC showed a fresher taste, more freshness, a naturally sweet taste and astringency compared to RFC. Minor deviations were observed in physicochemical parameters. Thus, guava NFC ensures better retention of vitamin C, antioxidant activity, β-carotene, iron bioavailability as well as better in sensorial properties compared to RFC.","PeriodicalId":513296,"journal":{"name":"Journal of Food, Nutrition and Diet Science","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140673461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of phosphorus and potassium fertilization and fruit canopy position on sugar accumulation in mangifera indica cv. 'Kent' pulp","authors":"K. Olale","doi":"10.55976/fnds.22024123041-48","DOIUrl":"https://doi.org/10.55976/fnds.22024123041-48","url":null,"abstract":"Sugar content is the key to mango quality and growers are constantly seeking methods to optimize it. In this study, fructose, glucose, sucrose, and maltose sugars were evaluated to determine how phosphorus and potassium fertilizers in varying amounts could affect these sugar levels and how sunlight exposure effects fruit. The experiments were conducted in the KALRO Orchard of Kiambu County, Kenya. Thirty-five healthy 7- to 8-year-old ‘Kent’ trees were selected and divided into five treatment groups with five replicates each. Treatment with 1 kg, 2 kg P, K and combined PK per tree resulted in a significantly higher fructose content than the control.\u0000In contrast, neither 1 kg nor 2 kg P resulted in significantly higher glucose contents than the control. Combined PK fertilizers at 0.5+0.5 kg per tree reduced fructose and increased glucose, sucrose, and maltose. A combination of PK fertilizers at 1.0+1.0 kg significantly increased only fructose, but not other sugars. Even after applying P and K fertilizers, the position of the fruit canopy did not affect fructose, glucose, or maltose contents. However, there was a trend towards a higher sucrose content in fruits exposed to sunlight (5.17 g/100 g) than in canopy fruits (2.29g/100g), although this difference was not statistically significant. The same trend was observed for the other sugars. The t-test revealed no significant differences between the two canopy positions (t = 1.01, p = 0.344). A significant difference in sugar content (p < 0.05) between fruits harvested at different canopy positions suggests that fruits harvested at different canopy positions did not ripen simultaneously.\u0000In contrast, neither 1 kg nor 2 kg of P produced a significant difference in the glucose content. Combining PK fertilizers at 0.5+0.5 kg per tree decreased fructose while increasing glucose, sucrose, and maltose. A combination of PK fertilizers at a rate of 1.0+1.0 kg significantly increased only fructose but not other sugars. Even after the application of P and K fertilizers, the position of the fruit canopy did not affect fructose, glucose, and maltose contents. However, there was a trend towards a higher sucrose content in fruits exposed to sunlight (5.17 g/100 g) than in crown fruits (2.29 g/100 g), although this difference was not statistically significant. The same trend was observed for the other sugars. The t-test revealed no significant differences between the two canopy positions (t = 1.01, p = 0.344). A significant difference in sugar content (p< 0.05) between fruits harvested at different canopy positions suggests that fruits harvested at different canopy positions did not ripen simultaneously.","PeriodicalId":513296,"journal":{"name":"Journal of Food, Nutrition and Diet Science","volume":"47 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140724062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nutritional supplementation of an apple callus extract to target epidermal aging","authors":"Julia Baumann, Franziska Wandrey, Kathrin Nowak, Torsten Grothe","doi":"10.55976/fnds.22024123718-28","DOIUrl":"https://doi.org/10.55976/fnds.22024123718-28","url":null,"abstract":"The global increase in life expectancy has led to a growing elderly population, which places a significant burden on healthcare systems. As a result, there is a growing interest to improve healthspan and promote healthy aging with accessible means, such as nutrition and lifestyle interventions. The skin, the body's largest organ and first line of defense against environmental stressors, is particularly vulnerable to aging due to both intrinsic and extrinsic factors. Various molecular and biochemical changes can drive skin aging, including the depletion of stem cells, which can lead to impaired skin properties. Nutrition plays a crucial role in skin aging, and dietary supplements could be a viable intervention to support a healthy skin. In this study, a plant callus extract from a specific apple variety (Malus Domestica Borkh), the Uttwiler Spätlauber, was evaluated as a dietary supplement to combat epidermal aging. The extract was found to maintain the function of keratinocyte progenitor cells during aging in vitro. Furthermore, an open-label pilot clinical study involving 31 female volunteers showed that the intake of apple callus extract led to improvements in skin elasticity, density, and firmness after 56 days of supplementation. This study highlights the potential of plant callus extracts as natural dietary supplements to support healthy skin aging. The use of plant callus cultures provides a sustainable and reproducible source of bioactive molecules, which is gaining acceptance in the nutraceutical market. These findings suggest that dietary interventions can play a role in promoting healthy skin aging and contribute to a holistic approach to improving healthspan during the aging process.","PeriodicalId":513296,"journal":{"name":"Journal of Food, Nutrition and Diet Science","volume":"138 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140417830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring micronutrient supplements in disease conditions: are they effective?","authors":"Moses B. Ekong, A. Nwakanma, C. Iniodu","doi":"10.55976/fnds.2202412051-17","DOIUrl":"https://doi.org/10.55976/fnds.2202412051-17","url":null,"abstract":"Nutrition is essential for the health and well-being of all living beings and is sourced from foods of different origins and types. Most importantly, the food must contain carbohydrates, proteins, fat, vitamins and minerals in a balanced form to achieve optimum benefits. Vitamins and minerals, also known as micronutrients, are characterised by their nature, quantity and role in normal metabolic activities. In humans, micronutrients are exclusively obtained from food or supplements. In addition, vitamin D3 is synthesized de novo with the aid of sunlight, while vitamins B and K are synthesized in the gut by the resident bacteria. Micronutrients play an important role in health and disease states and have become the most widely used dietary supplements in the world. However, how effective they are against diseases is controversial as conflicting reports continue to emerge, especially where insufficient data is available. This review highlights the important role of micronutrient supplements in the alleviation of communicable and non-communicable diseases. Data were retrieved from the literature in databases including African Journal Online, Google Scholar, PubMed and Web of Science, among others, with hits on nutrients, vitamins and mineral supplements: Only literature with relevant information from 1993-2023 (30 years) was considered. As important as these micronutrients are for health and their supplementations are generally beneficial, it is worthy of note that their role in the disease treatment is still limited by insufficient data.","PeriodicalId":513296,"journal":{"name":"Journal of Food, Nutrition and Diet Science","volume":"6 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139593145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}