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It is very significant to figure out each effecting factor related to the product of bean curd sheet. Kunte and others¡¯ research result shows that the bigger protein ratio of 11S/7S in bean can contribute to produce of rubbery gel more. Chen Haishu also indicates that the higher the tensile strength to get the bean curd sheet the lower the elongation ratio will be. Shi Yanguo point out that, when PH value ranged from 7 to 9 the yield of the bean curd sheet gradually increases as the PH value gets bigger and the yield of bean curd sheet when PH is 9 is nearly two percentage points higher than the yield when PH is 7 which mainly due to the solubility of protein increased with increasing PH. Han Zhi and others¡¯ research result shows that when the Soya-bean milk concentration is less than 5.5%, the yield of bean curd sheet and the velocity of the sheet forming increases with increasing of the Soya-bean milk concentration and reaches their maximum when the concentration is 5.5%. Liu Zhaoming points out that the yield of bean sheet increases first with the increasing temperature of Soya-bean milk then declines sharply when the temperature reaches 85¡æ.
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2Â¥2010-04-12 16:25:32
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3Â¥2010-04-12 16:26:29
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yuanying3318(½ð±Ò+10, ·­ÒëEPI+1):²»´í£¬Ð»Ð»¡£ 2010-04-14 23:31
it has great importance to figure out the impact of various factors involved with the production of bean curd. the research results of kunte and other people show that the high protein ratio of 11S/7S in bean helps to get strong gels.in the meantime,HaiminChen points out thant the more quantity of 11S/7S,the higher tensile strength of the bean curd but much lower elongation rate will be.YanguoShi says that when the pH is between 7 to 9,with the increase of solution pH, more bean sheets can be gotten.in addition, the yield in pH9 is nearly two percentage points hingher than in pH7,this is mainly due to protein solubility increased with the increase of pH.ZhiHan and other's research results show that when the concentration of the soya-bean milk is less than 5%,the yield of the bean sheets and the film forming speed can be promoted with the increase of the milk concentration and reachs to their maximum when the concentration is 5.5%.Zhaoming Liu points out that the yield of bean sheet increases first with the increase of temperature then declines sharply,when the temperature is 85¡æ ,it can reach to its Maximum value.
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shirongjiu

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yuanying3318(½ð±Ò+20):лÀ² 2010-04-14 23:32
It is of great importance to figure out the impact of various factors on the production of bean curd. The results of Kunte and his collegues showed that high ratio of 11S to 7S in bean proteins helped to get strong gels. Haimin Chen also pointed out that the higher ratio of 11S/7S was, the higher tensile strength and  lower elongation rate of the bean curd was obtained. YanguoShi found that more bean sheets could be achieved with the increase of solution pH within 7 to 9. Specifically, the yield in pH9 was nearly two percentage higher than in pH7. This was possiblly due to that the protein solubility increased with the increase of pH. ZhiHan et al. demonstrated that when the concentration of the soya-bean milk was less than 5%, the yield of the bean sheets and the film forming speed was promoted with the increase of the milk concentration and reached at their maximum when the concentration was 5.5%. Zhaoming Liu reported that the yield of bean sheet increased first with the increase of temperature then declined sharply. When the temperature was kept at 85¡æ ,the yield reached at the maximum value.

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[ Last edited by shirongjiu on 2010-4-14 at 10:43 ]
5Â¥2010-04-14 10:42:06
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