In vitro protein digestibility and mineral availability of green beans (Phaseolus vulgarisL) as influenced by variety and pod size
✍ Scribed by Martínez, Carmen; Ros, Gaspar; Periago, María J; Ortuño, Josefina; López, Ginés; Rincón, Francisco
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 214 KB
- Volume
- 77
- Category
- Article
- ISSN
- 0022-5142
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✦ Synopsis
Three varieties of green beans (Cleo, Strike and Sentry) were harvested and sorted into four fractions according to pod size (diameter \7 mm; 7È 8É5 mm; 8É6È10 mm and [10 mm). Ash content and dietary Ðbre increased sig-niÐcantly as pod size increased mainly in Cleo and Strike beans. Strike showed the highest Ðbre content (378É0 g kg~1) but the lowest carbohydrate (364É6 g kg~1) and ash (68É4 g kg~1) values. Mean values for Fe and Mg content were higher in Cleo beans (70É9 and 27É1 mg kg~1, respectively), Zn, Cu and Mg were higher in Strike beans (48É7 mg kg~1, 22É4 mg kg~1 and 3É15 g kg~1, respectively) while Na and Ca values were maximum in Sentry (459É1 mg kg~1 and 7É11 g kg~1, respectively). Trypsin inhibitor was negatively related to in vitro protein digestibility but no relationship was found between this last parameter and phytic acid content. This antinutrient, together with dietary Ðbre, and a negative inÑuence on in vitro mineral dialysability of green beans.
1998 SCI (