Applied Biological Chemistry
- Volume 39 Issue 6
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- Pages.477-481
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- 1996
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- 2468-0834(pISSN)
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- 2468-0842(eISSN)
Effect of Condensed Tannins Prepared from Banana (Musa Sapientum L.) fruit on Digestive Enzyme In vitro
바나나 과실 함유탄닌이 소화효소 작용에 미치는 영향
- Chung, Chung-Han (Department of Agricultural Chemistry, Dong-A University) ;
- Ryu, Chung-Ho (Department of Environmental Management, Taejon Junior College) ;
- Cho, Young-Su (Department of Agricultural Chemistry, Dong-A University)
- Published : 1996.12.31
Abstract
It has been shown that tannins have adverse effects on growth of animals and feed utilization. Tannins are usually classified into hydrolyzable and condensed types but the adverse effects are more marked in condensed tannin in hydrolyzable tannin. Furthermore, the principle condensed tannins found in banana fruits are pro types by the polymerization of flavan-3, 4-diols either alone or in combination with other flavonoids such as catechins. Tannin of the investigated banana(Banana; Musa sapientum LINN)fruits was fractionated into four or five molecular forms, according to the degree of polymerization by chromatography on a column of Sephadex LH-20. The protein-precitating capacity of the fraction noted tannins increased in degree polymerzation. The inhibitory effect of tannins on trypsin(EC 3. 4. 21. 4),
바나나 과실을 시중에서 구입하여 미숙과실과 황숙과실로 구별하고 이것들을 과육부분과 과피부분으로 나누어서 동결건조 및 열풍건조시켜 실험 시료로서 사용하였다. 탄닌 함량을 분석한 결과 황숙과실 보다도 미숙과실에서 높았으며, 과육보다는 과피에서 열풍건조 보다는 동결건조시킨 시료에서 높은 경향을 나타내었다. 탄닌의 분획은 Sephadex LH-20칼럼을 사용하여 분획하였다. 바나나 과실에 함유하고 있는 탄닌은 prodelphinidin, procyanidin을 구성 단위로 하는 proanthocyanidin류의 축합성 탄닌으로 이러한 탄닌은 소화효소인 trypsin(EC 3. 1. 1. 3),