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擠壓超聲聯(lián)用提取米糠多糖工藝優(yōu)化
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“十二五”國家科技支撐計劃資助項目（2012BAD34B02）;黑龍江省教育廳科學(xué)技術(shù)資助項目（12511z006）


Optimization of Extraction Technology of Rice Bran Polysaccharide by Extrusion in Conjunction with Ultrasound
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    摘要:

    為了提高米糠多糖得率，將擠壓與超聲方法聯(lián)用，在單因素試驗基礎(chǔ)上采取二次正交旋轉(zhuǎn)組合試驗，研究了酶法提取米糠多糖的擠壓工藝條件和超聲波處理條件，并構(gòu)建了超聲波處理的數(shù)學(xué)模型。試驗結(jié)果表明：在物料含水率20%、擠壓溫度115℃、螺桿轉(zhuǎn)速120r/min的擠壓條件下，獲取的米糠經(jīng)酶解后，在處理時間21min、超聲波功率117W、處理溫度72℃、液料比為8.7mL/g的優(yōu)化條件下，米糠多糖得率可達(dá)7.18%。

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    With the aim to improve the yield of rice bran polysaccharide, the method of extrusion in conjunction with ultrasound was used. On the basis of single factor experimental results, the combination design of quadratic orthogonal rotation was adopted to analyze the conditions of extrusion process and ultrasonic treatment condition, and then the mathematical model of ultrasonic treatment was constructed. The test results show that the rice bran is acquired under the condition of moisture content 20%, extrusion temperature 115℃ and screw speed 120r/min, the yield of rice bran polysaccharide can reach to 7.18% under the optimized conditions of ultrasonic time 21min, ultrasonic power 117W, ultrasonic temperature 72℃ and liquid-solid ratio 8.7mL/g.

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李杰,羅志剛,肖志剛,王利民,朱秀清,孫樹坤.擠壓超聲聯(lián)用提取米糠多糖工藝優(yōu)化[J].農(nóng)業(yè)機(jī)械學(xué)報,2013,44(3):174-179. Li Jie, Luo Zhigang, Xiao Zhigang, Wang Limin, Zhu Xiuqing, Sun Shukun. Optimization of Extraction Technology of Rice Bran Polysaccharide by Extrusion in Conjunction with Ultrasound[J]. Transactions of the Chinese Society for Agricultural Machinery,2013,44(3):174-179.

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  • 在線發(fā)布日期: 2013-02-25
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