Authors:Mary Namwanje; Julia Kigozi, Ivan M. Mukisa, Isaac Omagor, Sloans K. Chimatiro Abstract: Dried silver cyprinid (Rastrineobola argentea) has the potential to provide an affordable and accessible food-based strategy to fight malnutrition among Ugandans and enrich diets of the vulnerable persons. However, there is inadequate information on changes in the nutritional content and safety of stored dry silver cyprinid along the local handling chain. This study evaluated the effect of conventionally used packaging on microbial safety and nutrient quality of dry silver cyprinid during storage. Freshly dried silver cyprinid was obtained from stores at four landing sites on Lake Victoria and stored in open and closed gunny bags for 8 weeks. Samples were collected at 0, 1, 2, 4, 6 and 8 weeks of storage and assessed for nutritional and microbial quality. The type of packaging used (open or closed gunny bags) had no significant effect on most nutrient content and microbial safety parameters (p >0.05) except iron content, aflatoxin content, and TVBN content. Open gunny bags had higher aflatoxin content, greater iron degradation and greater variation in TVBN as compared to closed gunny bags throughout the storage duration. The observed difference in some of the quality parameters can be attributed to increased permeability to oxygen and moisture in open gunny bags as compared to closed gunny bags. PubDate: Tue, 09 Nov 2021 00:00:00 -080
Authors:Stephanie Tran Le; Kevin Haubrick Abstract: There is substantial evidence supporting individuals with polycystic ovary syndrome (PCOS) benefit from lifestyle changes through a nutrition intervention that improves small to moderate weight loss, restore ovulation, improve menstrual regularity, along with clinical (anthropometrics) and biochemical features (glucose tolerance, insulin, menstrual cycle, testosterone levels, free androgen index (FAI), and sex hormone binding globin). The objective of this systematic review was to evaluate individuals with PCOS and their body responses to different diets following a DASH, Mediterranean/Low-glycemic diet/low carbohydrate diet, and hypocaloric, diet in the improvement of clinical (anthropometrics) and biochemical (glucose tolerance, insulin, menstrual cycle, testosterone levels, free androgen index [FAI], and sex hormone binding globin) features. The literature was analyzed in different diet groups supporting nutrition intervention for PCOS in overweight/obese women in term of finding in clinical (anthropometrics- body mass index [BMI], waist circumference, and weight loss) and biochemical features (glucose tolerance, insulin, menstrual cycle, testosterone levels, FAI, and sex hormone binding globin), which will provide evidence to determine the best nutrition intervention for PCOS. This systematic review highlighted significant improvements in BMI, insulin resistance, menstrual irregularity and decrease testosterone levels in PCOS patients when following different diets (DASH, hypocaloric, Mediterranean/low-glycemic diet/low carbohydrate diet) when they are being compared among each other. Each diet supported different improvements in anthropometrics or biochemical biomarkers. PubDate: Sat, 17 Jul 2021 00:00:00 -070
Authors:Bakary A. Dao; Issiaka Togola, Cheickna Daou Abstract: The tea consumption has become an important part of the Malian’s habits. As a result, an image of tea preparation and consumption among Malians has become widely diffused; tea is offered in three successive glasses: the first drink (FD), the second drink (SD) and the third drink (TD). However, no study has been carried out on the antioxidant potential of this type of green tea preparation. The objective of this work was to evaluate the quality of the preparation methods of green tea (Camellia sinensis) as performed in grins. Thus, a phytochemical screening was carried out, the quantitative estimation of total polyphenols was performed by the method of Folin-Ciocalteu and that of flavonoids by using the aluminum trichloride. The in vitro antioxidant activity of the different tea extracts (macerated and decocted) was determined by the DPPH method. Thus, the presence of several metabolites was revealed in these tea extracts and the cumulative contents of phenolic compounds in the green tea extracts found in the glasses were 150.67 ±7.87 mg EAG/g, while 140.67 ±2.37 mg EAG/g were collected in the macerated extract (WM). Both types of extracts showed similar levels of flavonoids. The antioxidant activity of FD in all tea samples was statistically identical to that of the extracts (WM) from tea samples A and D (p-values > 0.05). It appears from this preliminary study that neither the total phenolic compound contents nor the antioxidant activity would be impacted by the way Malian green tea is prepared. PubDate: Thu, 15 Jul 2021 00:00:00 -070
Authors:Elisa Basika; Julia Kigozi, Guston Tumuhimbise Abstract: Post-harvest losses of fruits and vegetables in Uganda are estimated at 30% which is approximately 4 billion shillings lost annually. This is due to limited knowledge on value addition and preservation technologies being unaffordable. This study sought to add value to fruits and vegetables with a focus on mangoes, tomatoes, and carrots produced locally. The study determined the effect of processing conditions and addition of fruits and vegetables on the physico-chemical and sensory properties of tomato ketchup. Tomatoes were replaced with mangoes in increments of 10% up to 50% while keeping carrot levels constant at 5%. The best sensory properties were observed in the treatment that contained 15% mango. The Physico-chemical and sensory properties of ketchup were enhanced by the addition of fruits and vegetables up to 20%. The sensory evaluation revealed that ketchup prepared by the addition of fruits and vegetables (local mangoes and carrots) was preferred as compared to the control sample at 0% mango. The color of ketchup was affected by the incorporation of mangoes and carrots and it was acceptable up to at 5% carrot and 15% mango including taste, appearance, flavor, mouthfeel and aroma. The best treatment was then subjected to different processing conditions at different holding times and temperatures of 5, 10 and 15 minutes at temperatures of 70, 75, 80, 85, 90 and 100 degrees Celsius respectively. The best conditions were observed to be between 80℃ and 85℃ and 10 to 15 minutes holding time. It was also evident that time and temperature had a significant (p<0.05) effect on the Physico-chemical properties of ketchup. PubDate: Tue, 27 Apr 2021 00:00:00 -070
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