Page 140 - 《精细化工》2022年第8期

·1640· 精细化工 FINE CHEMICALS 第 39 卷

射流辅助提取对鱼鳞多糖对 DPPH•清除能力影响的 production[J]. Journal of Applied Microbiology, 2010, 109(6): 2160-2172.
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结果一致。由图 7b 可知，EBGS 和 EBG 对•OH 具
Curdlan complexes as a potential food-grade delivery system:
有一定的清除能力，而且清除能力与其质量浓度有 Genistein case study[J]. Ther Deliv, 2011, 2(2): 181-192.
关，这与 DPPH•清除能力结果相似。当样品质量浓 [5] CLARKE A E, STONE B A. Structure of the paramylon from
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的清除能力迅速增大，而当质量浓度>1.0 g/L 时， physico-chemistry and applications linked to biological activities of
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质量浓度较高有关，当样品质量浓度较高时，—CH of alkaline extraction and antioxidant activities of paramylon in
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基团导致多糖的整合，并在溶液中产生簇，簇的存
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在减少了•OH 与多糖接触的机会 [34] ，从而导致•OH [8] JU H J (鞠海军). Separation, structure identification of paramylon
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度 4.2 g/L。在此条件下，EBG 提取率为 80.27%。
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碱法提取 EBG 提取率仅为 42.35%，而且破坏了 EBG [13] SUTHERLAND I W. Novel and established applications of microbial
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高、用时更少，节约了能源，保证了产品质量。 Journal of Clinical Nutrition, 1999, (1): 30-42.
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析，超高压微射流技术提取的 EBG 仍具有有序的三 Wochenschrift, 2004, 116(14): 465-476.
螺旋结构；EBG 的结晶度降低，EBG 外表出现裂痕 [16] CHAN C F, CHAN W K, SZE M Y. The effects of β-glucan on
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除能力，在质量浓度为 0.4~2.0 g/L 时 EBGS 和 EBG
residues by dynamic high-pressure microfluidization[J]. Food Chemistry,
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对 DPPH•的清除率（35.14%）。而 EBGS 和 EBG 对 cassava starch granule[J]. Starch, 2011, 63(3): 76-81.
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EBG 的结构特点使其水溶性较差，抗氧化活性
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Ultrasonic extraction optimization of raspberry (Rubus idaeus L.)
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and tyrosine by Euglena gracilis under conditions of high biomass （下转第 1661 页）