## Abstract The effect of processing treatments on the rate of starch digestibility in three legumes, viz., bengal gram (__Cicer arietinum__ L.), cowpea __(Vigna unguiculata)__ and green gram __(Vigna radiata)__ was studied using an in vitro dialysis system. The processes studied were fermentation,
Effect of processing on the composition of dietary fibre and starch in some legumes
โ Scribed by Veena, A. ;Urooj, Asna ;Puttaraj, Shashikala
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 424 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0027-769X
No coin nor oath required. For personal study only.
โฆ Synopsis
The effect of processing on the total dietary fibre (TDF) insoluble (IDF) and water-soluble (SDF) fractions as well as total (TS), available (AS) and resistant (RS) starch were studied in three legumes, viz. bengalgram (Cicer urietinum L.), Cowpea (Vignu Lcnguiculata) and greengram (Vigna rudiata). The processes studied were fermentation, germination, pressure-cooking and roasting. The dietary fibre (DF) content and its components were determined using the enzymatic-gravimetric method. The TS content was determined by the enzymatic method after solubilization with KOH. The D F content ranged from 23.2 to 25.6 gjl00 g in the raw and 16.0 to 31.5 g/lOO g in the processed legumes. All the processing treatments significantly decreased the S D F content and increased the I D F content of all the three legumes. The mean TS, AS and RS content of the raw legumes were similar, 46.9, 36.7 and 10.2 g/lOO g respectively. AS content of all the legumes was reduced by the processing treatments, except pressure cooking. Correspondingly, higher amounts of RS were observed in the processed legumes, except pressure cooked, resulting in an increase in the T D F content.
Zusammenfassung
EinfluR der Verarbeitung auf die Zusammensetzung der Rohfaser und der Starke in einigen Leguminosen An drei Arten der Kichererbse, namlich Bcngalgram (C'icer arirtinum L.), Cowpea ( Vigna unguiculotu) und Greengram (Vigna rodiotnj wird der EinfluR der Verarbeitung auf die Gesamt-Rohfaser (TDF) und deren unlosliche (IDF) und wasserlosliche (SDF) Fraktionen sowie auf die Gesamt-(TS), verfiigbare (AS) und resistente (RS) Stirke untersucht. Die gepriiften Verarbeitungsprozesse sind Fermentation, Keimung, Druck-Kochung und Rostung. Der Gehalt an Rohfaser (DF) und seinen Komponenten wird unter Anwendung der enzymatisch-gravimetrischen Methode bestimmt. Der DF-Gehalt liegt bei den rohen Leguminosen im Bereich von 23,2 bis 25,6 g und bei den verarbeiteten im Bereich von 16.0 bis 31.5 g/lOO g. Die Verarbeitungsprozesse verringern den SDF-Gehalt und erhohen den IDF-Gehalt in allen drei Leguminosenarten signifikant. Die mittleren Gehalte an TS, AS und RS der rohen Leguminosen sind Hhnlich und betragen 46,9, 36,7 bzw. 10,2 g/lOO g. Der AS-Gehalt aller Leguminosen wird -mit Ausnahme der Druck-Kochungdurch die Verarbeitung erniedrigt. Entsprechend werden hohere Gehalte an RS in den verarbcitctcn Leguminosen ermittelt, mit Ausnahme der unter Druck gekochten Proben, die einen erhohten Gehalt an T D F aufweisen.
๐ SIMILAR VOLUMES
Alfalfa (Medicago sativa L), red clover (Trifolium pratense L), birdsfoot trefoil (Lotus corniculatus L), sainfoin (Onobrychis viciifolia Scop), crownvetch (Coronilla varia L), cicer milkvetch (Astragrlus cicer L), sericea lespedeza (Lespedeza cuneata (Dum-Cours) G Don) and kura clover (Trifolium am
Dietary ยฎbres may cause dietary starch to escape digestion in the small intestine and enter the large intestine. If this results from the dietary ยฎbres reducing the gastrointestinal transit time, those dietary ยฎbres that reduce this the most would be expected to cause the most starch to escape diges
The content of digestible starch (DS) and resistant starch (RS) in processed potatoes was assessed. In addition, the effect of domestic cooking on the in vitro digestibility of starch in this tuber, which may influence the glycaemic response, was studied. Resistant starch in raw potato is high, howe
The effect of extrusion processing using Wenger X-5 extruder on the quality of products of rice-legume (75 : 25) blends was investigated. The products were palatable and had a good textur. The nutritional quality of protein in the extrudates was significantly improved. The protein efficiency ratio v