Moges Abebe, Barik Chitta Ranjan, Purohit Sukumar, Goud Vaibhav V
Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039 India.
School of Energy Science and Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039 India.
Food Sci Biotechnol. 2021 Oct 26;30(12):1555-1569. doi: 10.1007/s10068-021-00988-8. eCollection 2021 Nov.
The physico-chemical, polyphenols, antioxidant and antibacterial properties of berries and mixture of male and female leaves of were investigated. The mineral, vitamin C, sugar, total protein, and total tannin contents of the berries and the leaves were evaluated. Further, the extracts of berries and mixture of leaves samples obtained by successive solvent extraction were investigated for their polyphenols, antioxidant and antibacterial properties. Total phenolic content was highest in leaves-methanol extract (157.97 ± 2.09 mg GAE/g) followed by berries-aqueous extract (48.45 ± 1.94 mg GAE/g), while total flavonoid was predominant in leaves-acetone extract (75.64 ± 3.21 mg QE/g) and berries-methanol extract (28.93 ± 2.08 mg QE/g). Gallic acid, caffeic acid, and rutin were the major polyphenols confirmed by HPLC analysis. Berries-aqueous and leaves-methanol extracts showed excellent global antioxidant score. Best antibacterial activity was observed by methanol extracts against eight different strains. Overall, the leaves and berries of collected from Northeast India exhibited good antioxidant and antibacterial activity and can be utilized by food and pharmaceutical sectors.
The online version contains supplementary material available at 10.1007/s10068-021-00988-8.
对浆果以及[植物名称]雌雄叶混合物的物理化学性质、多酚、抗氧化和抗菌特性进行了研究。评估了浆果和叶片中的矿物质、维生素C、糖、总蛋白和总单宁含量。此外，还研究了通过连续溶剂萃取获得的浆果提取物和叶片样品混合物的多酚、抗氧化和抗菌特性。总酚含量在叶-甲醇提取物中最高（157.97±2.09毫克没食子酸当量/克），其次是浆果-水提取物（48.45±1.94毫克没食子酸当量/克），而总黄酮在叶-丙酮提取物（75.64±3.21毫克槲皮素当量/克）和浆果-甲醇提取物（28.93±2.08毫克槲皮素当量/克）中占主导地位。通过高效液相色谱分析确定没食子酸、咖啡酸和芦丁为主要多酚。浆果-水提取物和叶-甲醇提取物表现出优异的整体抗氧化评分。甲醇提取物对八种不同菌株表现出最佳抗菌活性。总体而言，从印度东北部采集的[植物名称]的叶和浆果具有良好的抗氧化和抗菌活性，可被食品和制药行业利用。
在线版本包含可在10.1007/s10068-021-00988-8获取的补充材料。
