Chau Chi-Fai, Chen Chien-Hung, Lee Mao-Hsiang
Department of Food Science, National Chung Hsing University, 250 Kuokuang Road, Taichung 40227, Taiwan, Republic of China.
Nahrung. 2004 Feb;48(1):43-6. doi: 10.1002/food.200300354.
The pomace of Averrhoa carambola (carambola) was found to possess a high level of insoluble fibre-rich fractions (FRFs) including insoluble dietary fibre, alcohol-insoluble solid, and water-insoluble solid (46.0-58.2 g/100 g of pomace). These FRFs were mainly composed of pectic substances and hemicellulose. The physicochemical properties of these FRFs (e.g., water-holding capacities, swelling properties, and cation-exchange capacities) were significantly (P < 0.05) higher than those of cellulose. The apparent abilities of these FRFs to adsorb glucose and reduce amylase activity implied that they might help control postprandial serum glucose. These results recommended the consumption and application of the insoluble FRFs as low-calorie bulk ingredients in fibre enrichment. Further investigations on the in vivo hypoglycemic effect and other physiological effects of these FRFs using animal-feeding experiments are underway.
人们发现，杨桃（阳桃）果渣含有大量富含不溶性纤维的组分（FRF），包括不溶性膳食纤维、醇不溶性固体和水不溶性固体（每100克果渣含46.0 - 58.2克）。这些FRF主要由果胶物质和半纤维素组成。这些FRF的物理化学性质（如持水能力、膨胀性能和阳离子交换能力）显著高于纤维素（P < 0.05）。这些FRF吸附葡萄糖和降低淀粉酶活性的表观能力表明它们可能有助于控制餐后血糖。这些结果表明，可将不溶性FRF作为低热量填充成分用于纤维强化食品中。目前正在通过动物喂养实验进一步研究这些FRF的体内降血糖作用和其他生理作用。
