Kandasamy Saravanan, Baggu Chinnababu, Javagal Manjunatha Rangaswamy, Lingamallu Jaganmohan Rao, Yenamandra Venkateswarlu, Aradhya Somaradhya Mallikarjuna
Dept. of Fruit and Vegetable Technology, Central Food Technological Research Institute, Mysore-570 020, Karnataka, India.
J Food Sci. 2014 May;79(5):H988-1001. doi: 10.1111/1750-3841.12414. Epub 2014 May 1.
In this study, we attempted to explore banana rhizome (BR) as a source of natural bioactive compounds. Dried BR powder was subjected to sequential extraction using solvents with increasing polarity and studied for antioxidant activities. Chloroform and acetone extracts were selected for isolation and identification of bioactive compounds because of their high antioxidant properties. Antioxidant activity guided fractionation of these extracts yielded 3 compounds. The spectroscopy studies revealed the identity of isolated compounds as 4-epicyclomusalenone, cycloeucalenol acetate and chlorogenic acid. Polyphenolic compound chlorogenic acid and triterpenoid compounds, 4-cyclomusalenone and cycloeucalenol acetate displayed multifunctional antioxidant activity.
The isolated compounds namely 4-epicyclomusalenone, cycloeucalenol acetate and chlorogenic acid have demonstrated their antioxidant properties in different in vitro assay models. The present study indicated that the vast quantity of banana rhizome which was incinerated could be a potential source of natural antioxidant compounds. This can also be used in the food, nutraceutical and pharmaceutical industries.
在本研究中，我们试图探索香蕉根茎（BR）作为天然生物活性化合物的来源。将干燥的BR粉末用极性递增的溶剂进行连续萃取，并研究其抗氧化活性。由于氯仿和丙酮提取物具有较高的抗氧化性能，因此选择它们来分离和鉴定生物活性化合物。对这些提取物进行抗氧化活性导向的分级分离得到了3种化合物。光谱学研究表明，分离出的化合物为4-表环莫沙烯酮、环桉烯醇乙酸酯和绿原酸。多酚类化合物绿原酸和三萜类化合物4-环莫沙烯酮及环桉烯醇乙酸酯具有多功能抗氧化活性。
分离出的化合物，即4-表环莫沙烯酮、环桉烯醇乙酸酯和绿原酸，已在不同的体外试验模型中证明了它们的抗氧化性能。本研究表明，大量被焚烧的香蕉根茎可能是天然抗氧化化合物的潜在来源。这也可用于食品、营养保健品和制药行业。
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