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Chemical composition and antioxidant activity of certain Morus species

Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2010年第12期11卷 973-980页

作者： Mohammad IMRAN Hamayun KHAN Mohibullah SHAH Rasool KHAN Faridullah KHAN Institute of Chemical Sciences University of Peshawar Department of Chemistry Islamia College University Pakistan Council of Scientific & Industrial Research (PCSIR) Laboratories Complex

In the present work,the fruits of four Morus species,namely Morus alba (white mulberry),Morus nigra (black mulberry),Morus laevigata (large white fruit),and Morus laevigata (large black fruit),were analyzed for proximate composition,essential minerals,and antioxidant *** this purpose,the ripe fruits were collected from the northern regions of *** major nutritional components moisture,ash,lipids,proteins,fibres,carbohydrates,and total sugar) were found to be in the suitable range along with good computed *** dry weight,pH,and titratable acidity (percent citric acid) were (17.60±1.94)–(21.97±2.34) mg/100 g,(3.20±0.07)–(4.78±0.15),and (0.84±0.40)%–(2.00±0.08)%,*** riboflavin (vitamin B2) and niacin (vitamin B3) contents were recorded in all the fruits,while ascorbic acid (vitamin C) was in the range from (15.20±1.25) to (17.03±1.71) mg/100 g fresh weight (FW).The mulberry fruits were rich with regard to the total phenol and alkaloid contents,having values of (880±7.20)–(1650±12.25) mg/100 g FW and (390±3.22)–(660±5.25) mg/100 g FW,*** quantities of essential macro-(K,Ca,Mg,and Na) and micro-(Fe,Zn,and Ni) elements were found in all the fruits.K was the predominant element with concentration ranging from (1270±9.36) to (1731±11.50) mg/100 g,while Ca,Na,and Mg contents were (440±3.21)–(576±7.37),(260±3.86)–(280±3.50),and (240±3.51)–(360±4.20) mg/100 g,*** decreasing order of micro-minerals was Fe>Zn>*** radical scavenging activity of methanolic extract of fruits was concentration-dependent and showed a correlation with total phenolic constituents of the respective *** on the results obtained,mulberry fruits were found to serve as a potential source of food diet and natural antioxidants.

关键词：桑树水果化学作文 2,2-diphenyl-1-picrylhydrazyl (DPPH ) 基清除活动营养的价值巴基斯坦

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