The effects of gamma irradiation from a 60 Co source (10 and 20 kGy), dry heating (121 Β°C for 10, 20 and 30 min), autoclaving (121 Β°C at 103.5 kPa for 10, 20 and 30 min) and their combination on chlorogenic acid, soluble protein, available lysine and in-vitro protein digestibility of sunΒ―ower meal w
Effect of irradiation and other processing methods on in-vitro digestibility of rapeseed protein
β Scribed by Amal Badshah; Aurangzeb; A Sattar; Nizakat Bibi
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 268 KB
- Volume
- 61
- Category
- Article
- ISSN
- 0022-5142
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β¦ Synopsis
Abstract
Abstract. Effect of irradiation (1 kGy), autoclaving (121Β°C at 103.5 kPa for 5, 10, 15, 20, 25 and 30 min), dry heating (121Β°C for 5, 10, 15, 20, 25, 30 and 60 min), sprouting (36 h) and their combination on inβvitro digestibility of rapeseed protein was studied. Digestibility was significantly affected by processing methods (P < 0.05). Digestibility of untreated rapeseed protein was 85.7%. Irradiation alone and irradiation plus dry heating showed no effect on the digestibility, while irradiation plus autoclaving markedly improved (88.9%) the digestibility. The digestibility was influenced by the time of autoclaving and dry heating. Maximum value for inβvitro digestibility was recorded for 60 min of dry heating (91.8%). Sprouting of rapeseed exhibited a significant decrease (82.8%) in the digestibility.
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## Abstract **BACKGROUND:** Rapeseed is a protein supplement that contains up to 40% crude protein (CP) on a dry matter (DM) basis, but a large part of its protein can be easily degraded in the rumen. Therefore, before inclusion in ruminant's diet, the extent of its protein degradation in the rumen