-Response surface methodology (RSM) was applied to study the optimum condition of mango seed kernel oil (MSKO) extraction with n-hexane. In the present paper, for the first time, we provide an optimal condition of MSKO extraction to obtain the maximum of yield, total phenolic content (TPC) and vitamin E. The experiment was conducted using central composite design (CCD) consisted of twenty experimental points including six replicates of center points to study the effect of three independent variables: temperature, time and amount of n-hexane on dependent variables. Data were analyzed using Design-Expert 10 software. The result showed that the optimum condition of MSKO extraction were 54.19°C, 5.24 h and 224.23 mL of n-hexane. In this condition MSKO have yield of 7.03%, TPC of 67.77 mg GAE/g oil and vitamin E of 141.22 mg/L. These results suggest that MSKO has potential as raw materials of food products oil-based and as a natural antioxidant of functional food and for use in food processing.Keywords: mango seed kernel oil / oil extraction / total phenolic content / vitamin E / response surface methodology Résumé -Optimisation de l'extraction d'huile de noyau de mangue à l'aide de la méthodologie RSM.La méthodologie Response surface methodology (RSM) a été appliquée pour définir les conditions optimales d'extraction de l'huile de noyau de mangue avec du n-hexane. Dans le présent article, pour la première fois, est proposée une condition optimale d'extraction de l'huile de noyau de mangue afin d'optimiser le rendement, la teneur en phénols (total phenolic content ou TPC) et en vitamine E. L'expérience a été réalisée en utilisant plan d'expériences composite centré de vingt points expérimentaux avec six répétions de points centraux pour étudier l'effet de trois variables indépendantes : température, temps et quantité de n-hexane sur des variables dépendantes. Les données ont été analysées à l'aide du logiciel Design-Expert 10. Le résultat a montré que les conditions optimales d'extraction de l'huile de noyau de mangue étaient 54,19°C, 5,24 h et 224,23 ml de nhexane. Dans ces conditions, le rendement est de 7,03 %, la teneur TPC de 67,77 mg GAE/g d'huile et la concentration en vitamine E de 141,22 mg/L. Ces résultats soulignent le potentiel de l'huile de noyau de mangue en tant que matière première de produits alimentaires à base d'huile et en tant qu'antioxydant naturel des aliments fonctionnels et pour la transformation des aliments.
The high content of albumin in snakehead fish and proof of efficacy in clinical trials against several diseases, as well as the expensive commercial albumin preparations, making a snakehead fish alternative as a cheap source of albumin. The purpose of this study was to optimize the extraction, purification of albumin from snakehead fish to obtain higher levels of albumin. For that need to be investigated to obtain the isoelectric point of albumin extract with the greatest yield. Treatment research is the use of solvents is 0.9% NaCL and dilute HCL and extraction is by heating and without heating. The parameters tested were the determination of the isoelectric point, moisture content, albumin, and yield. The results obtained showed that the isoelectric point of albumin is at pH 4.6 with 62.9% albumin, 7.8% moisture content and yield of 11.6%.
Indonesian traditional drink such as Sarabba is generally consumed for its taste. However, this drink has certain functional properties which originated from its basic ingredients. To enhance its functional properties, other natural ingredients such as black rice extract can be added to the basic ingredients. Therefore, the objectives of these study were to find out the best treatment for the use of black rice extract in producing of Sarabba and the effect of drying time on proximate value, anthocyanin, and thiamine contents; and solubility level of the product. Black rice is one type of local varieties that contains anthocyanins, a group of flavonoids, which is beneficial to health. This research used black rice as basic ingredient in making instant “Sarabba”. Sarabbais one traditional drink from South Sulawesi which is made from brown sugar, ginger and coconut milk. The aim of this research was to determine the best treatment of the utilization of black rice extract in making “sarraba” instant. Sarabbawas prepared with ratio of black rice and water, 50%: 50%; 30%: 70%; 70%: 30 %. The best treatment was then subjected to drying process at different times, 1 hour, 1.5 hours, 2 hours to determine the effect of drying time on proximate, anthocyanin, thiamine and solubility content. The sensory value and solubility results obtained were treated with quantitative descriptive with three replications. The best result of sensory evaluation based on color, taste, odor and texture was found in treatment 70% rice:30% water. The result showed that best content of water, carbohydrate and solubility level were obtained at two hours drying which were 1.67%, 0.11% and 20 seconds, respectively. The best content of ash, anthocyanin, thiamin and fat content were obtained during one hour drying which were 2.3%, 11.83%, 0.056% and 0.03, respectively. The highest protein content was obtained from of 1.5 hours drying treatment (4.78%). Recommended Sarabbainstant processing was ratio of black rice 70% : water 30% and one hour drying.
The condition where refugees cannot fulfilling their food needs increases the need for emergency food production which is ready to consume. Emergency food can be design as a snack bar that can be produced using blended flour of banana, mung beans, and mung bean sprouts. The purposes of this study were to determine the best formulation of the snack bar and to determine the adequacy of snack bar nutrition content with nutritional adequacy rates per day. This study consists of two stages, first, the determination of the three best formulations from five formulations that have been made through organoleptic testing. The second stage was to determine the nutritional profile from the results of the first phase of research with observational parameters. Based on the organoleptic test results, and make the nutritional profile test results from 3 treatments were respectively water content (5.1%, 5.26%, 5.07%), ash content (2.53%, 2.59%, 2.69%), protein content (9.49%, 9.14%, 8.99%), fat content (19.56%, 19.38%, 19.34%) carbohydrate levels (63.33%, 63.62%, 63.92%), fiber content (1.35%, 1.44%, 1.48%), while for consecutive calorie calculation results (707.99 Cal, 708.59 Cal and 710.6 Cal).The conclusion is Snack bar can fulfill nutritional adequacy rates per day.
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