| 摘要: |
| 以印尼海域刺麒麟菜(Eucheuma spinosum)为原料, 分别采用烘箱法、高温灼烧法、凯式定氮法、索氏提取法对其水分、灰分、粗蛋白、粗脂肪含量进行测定, 通过正交试验确定最佳提取工艺参数。结果表明, 该刺麒麟菜中水分、灰分、粗蛋白、粗脂肪含量分别为12.93%, 22.68%, 4.19%和0.58%。最佳提取工艺参数由正交试验确定为: 常温下, 9% KOH 处理5 h, 90 ℃提取4 h。得到凝胶强度为59g/cm2, 产率为47.6%的ι-卡拉胶产品。 |
| 关键词: 刺麒麟菜(Eucheuma spinosum) 基本成分 ι-卡拉胶 提取工艺 正交实验 |
| DOI： |
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| 基金项目:山东省自然科学基金资助项目(ZR2009RM018) |
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| Analysis of compositions of Eucheuma spinosum and studies on the technological parameters in ι-carrageenan extraction from this alga |
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| Abstract: |
| In order to provide plenty data for ι-carrageenan production, the chemical compositions of Eucheuma spinosum were analyzed and technological parameters for ι-carrageenan extraction from this alga were studied. By oven drying method, ignition, Kjeldahl method and Soxhlet extraction, the contents of water, ash, crude protein and crude fat in Eucheuma spinosum were determined to be 12.93%, 22.68%, 4.19%, and 0.58%, respectively. The optimal parameters were established by orthogonal design to be treated with 9% potassium hydroxide for 5 hours under room temperature and extracted for 4 hours at 90 ℃. The yield of extraction was 47.6% and the gel strength of ι-carrageenan product was 59 g/cm2. |
| Key words: Eucheuma spinosum compositions ι-carrageenan technological parameters orthogonal experiments |
