Maesa indica: a nutritional wild berry rich in polyphenols with special attention to radical scavenging and inhibition of key enzymes, alpha-amylase and alpha-glucosidase

作者：Shanmugam Saravanan; Baby John Prakash; Chandran Rahul; Thankarajan Sajeesh; Thangaraj Parimelazhagan^*

来源：Journal of Food Science and Technology-Mysore, 2016, 53(7): 2957-2965.

DOI：10.1007/s13197-016-2263-3

• Maesa indica
• Free radical
• alpha-Amylase
• alpha-Glucosidase

The present study was aimed to evaluate the nutritional, antioxidant properties and inhibition of the key enzyme such as alpha-amylase and alpha-glucosidase from the fruits of Maesa indica. The results revealed that M. indica fruits possess an enormous amount of protein (45.68 mg/g), carbohydrates (25.12 mg/g) and mineral elements. The acetone extract were capable of hunting radicals by providing electrons and break chain reaction, especially in ABTS(center dot+) (3719.23 lmol TE/g extract), OH center dot (66.50 %) and NO center dot (81.50 %) radical scavenging assays. The methanol extract showed a strong inhibition towards alpha-amylase and alpha-glucosidase (IC50 of 37.80 and 23.74 mu g/mL, respectively). HPLC analysis enumerate that both extracts illustrates the presence of polyphenolic compounds namely quercetin, caffeic acid, rutin and chlorogenic acid.

• 出版日期2016-7