Influence of Solvents on Quality Attributes and Bioactive Compounds in Moringa Whole Seeds and Kernels Oils
نویسندگان
1 Agricultural Engineering Research Institute, Agricultural Research Center, Dokki, Giza 12611, EGYPT
2 College of Food Science and Technology, Nanjing Agricultural University, Nanjing, P.R. CHINA
3 Agricultural Research Center, Food Technology Research Institute, 12611 Giza, EGYPT
4 Faculty of Agriculture, Kafrelshiekh University, Kafrelsheikh, EGYPT
5 Agricultural Research Center, Food Technology Research Institute, Giza 12611, EGYPT
6 Chair of Dates Industry and Technology, King Saud University, PO Box 2460, Riyadh 11451, SAUDI ARABIA
7 Food Science and Nutrition Department, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, 11451 Riyadh, SAUDI ARABIA
doi
10.30492/ijcce.2024.2026464.6539چکیده
This study explores the impact of solvents (petroleum ether, n-hexane, and chloroform-methanol mixtures) on the quality and bioactive compounds of moringa whole seeds oil (MWOSO) and moringa kernels oil (MKRO). Assessing parameters like acid value, peroxide value, fatty acid composition, and antioxidant activity, the research aims to determine the extraction efficiency of these solvents at different ratios (1:1 and 2:1). The results illuminated the consistently superior oil quality achieved through n-hexane extraction, as evidenced by lower AV 1.54 and 1.21 (mg KOH/g) and PV 1.30 and 1.26 (meq. O2/kg) values for MWOSO and MKRO, respectively. Moreover, the induction period highlighted the oxidative stability of oils extracted with n-hexane and chloroform-methanol (2:1), which reached about 7.37 and 7.86 h, respectively. Notably, when comparing the whole seeds and kernels, MKRO demonstrated lower AV and PV and a higher induction period compared to MWOSO along all solvents, suggesting its potential for yielding oils of enhanced quality. MKRO showed higher oil content than MWOSO in all solvents, reaching the highest amount by using chloroform: methanol mixtures. Chloroform: methanol (2:1) showed the highest total tocopherol amounts for both MWOSO and MKRO (23.91 AND 23.88 MG/100G, respectively). Furthermore, the study identified chloroform: methanol 2:1 as the most effective solvent combination for total phenolic content (4.04 and 4.97 mg GAE/100g for MWOSO and MKRO, respectively) and antioxidant activity (DPPH) (52.17 and 66.08% for MWOSO and MKRO, respectively). These findings underscore the critical role of solvent selection in optimizing moringa oil's quality and bioactive properties.
