Effects of 60Co-Gamma Irradiation on Wheat Processing Quality and Final Product Texture Properties
2022
Xiaojie WANG | Baozhen HAO | Yike XIE | Jingli MA | Xia CHANG
To clarify the effects of 60Co-gamma irradiation on the quality of wheat, dry seeds of wheat was irradiated by 60Co-gamma irradiation of different doses (0, 35, 50, 75, 90, 120, 150, 200, 300, 400 Gy), the quality of M1 generation on gluten content of wheat flour, dough rheological properties, steamed bread texture and sensory evaluation were analyzed. The results showed that irradiation treatment made the gluten content develop in the direction of high and low; In the dough rheological properties, 4 different types of dough characteristics were obtained by irradiation treatment, the energy, 50 mm extension resistance, 50 mm extension ratio, maximum extension resistance, maximum extension ratio of 400 Gy irradiation treatment were showed the biggest (except for fermentation time 90 min), 75 Gy irradiation treatment were moderated in extension ratio; In the texture of steamed bread, the hardness and chewiness of irradiation treatment were reduced, the cohesion and recovery were not significant (P>0.05); In the sensory score, 75 Gy irradiation treatment showed the best quality, followed by 90, 50, 200 Gy, other irradiation treatment had no obvious influence on sensory score compared with the control (P>0.05). Pearson correlation analysis showed that the hardness was negatively correlated with stable time and farinograph property (P<0.05), steamed bread flavor was negatively correlated with wet gluten content and softening degree (P<0.05), and positively correlated with gluten index and stable time (P<0.05). Thus, the objectives of mutation breeding were determined according to sensitivity of materials and doses.
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