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Effect of Dynamic High Pressure Microfluidization on the Crystal Structure of Dietary Fiber
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Jie WAN1, Cheng-Mei LIU1, 2, Ti LI1, 2, Wei LIU1, 2
Chinese Journal of High Pressure Physics | 2012, 26(6) : 639 - 644
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Chinese Journal of High Pressure Physics | 2012, 26(6): 639-644
Effect of Dynamic High Pressure Microfluidization on the Crystal Structure of Dietary Fiber
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Jie WAN1, Cheng-Mei LIU1, 2, Ti LI1, 2, Wei LIU1, 2
Affiliations
  • 1.State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
  • 2.Sino-German Food Engineering Center, Nanchang University, Nanchang 330047, China
Published: 2012-12-15
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Differences in specific surface area and crystal structure between raw dietary fiber (DF) obtained from soybean and DF modified with dynamic high pressure microfluidization (DHPM) were analysis by nitrogen adsorption, X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). The results indicated that the specific surface area of DF was enlarged significantly (p<0.05) by DHPM treatment. The specific surface area of DF increased with the increase of pressure in the range of 40-140 MPa, and the maximum specific surface area of DF was 2.887 5 m2/g. When the pressure went on increasing, the accessibility to N2 tended to decrease because of the aggregation of micro particles. XRD confirmed that both raw DF and modified DF had cellulose Ⅰ crystal structure. After DHPM treatment the crystal form of DF was not changed, whereas the apparent crystallinity of DF was reduced. The higher the pressure was, the less the apparent crystallinity was. FTIR spectra showed that DHPM led to 2-OH…O-6 intramolecular hydrogen bond and β glycosidic linkage decreased, and as the pressure increased the effect became more obvious.

dynamic high pressure microfluidization  /  dietary fiber  /  crystal structure
万婕, 刘成梅, 李俶, 刘伟. 动态高压微射流作用对膳食纤维结晶结构的影响. 高压物理学报, 2012 , 26 (6) : 639 -644 .
Jie WAN, Cheng-Mei LIU, Ti LI, Wei LIU. Effect of Dynamic High Pressure Microfluidization on the Crystal Structure of Dietary Fiber[J]. Chinese Journal of High Pressure Physics, 2012 , 26 (6) : 639 -644 .
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  • Receive Date：2012-08-25
  • Online Date：2026-11-05
  • Published：2012-12-15
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History
  • Received：2012-08-25
  • Revised：2012-11-12
Funding
Affiliations
    1.State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
    2.Sino-German Food Engineering Center, Nanchang University, Nanchang 330047, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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