Department of Product Development, Faculty of Agro-Industry, Kasetsart University, Bangkok 10900, Thailand.
Molecules. 2024 May 26;29(11):2511. doi: 10.3390/molecules29112511.
The extraction of cannabinoids from the inflorescence and leaves of L. is gaining interest from researchers, in addition to addressing the under-utilization of the by-products in the stems and roots of the trees. The present study investigated the recovery of pectin from the left-over parts of hemp tress using an eco-friendly method with the aid of organic acids. Different cannabis cultivars-Chalotte's Angels (CHA) and Hang-Krarog (HKR)-were used as plant materials. The stems of both cannabis cultivars contained more pectin than the roots, and tartaric acid-aided extraction provided higher yields than from citric acid. Extracting the acid solution affected some characteristics, thereby differentiating the functional properties of the derived pectin. Extraction using tartaric acid provided pectin with a higher galacturonic acid content, whereas pectin with a higher methylation degree could be prepared using citric acid. The pectin samples extracted from the stems of CHA (P-CHA) and HKR (P-HKR) had low methoxyl pectin. P-CHA had better free radical scavenging capability, whereas P-HKR showed more potent reducibility. Considering the functional properties, P-CHA showed greater emulsion formability and foaming activity, whereas P-HKR possessed a better thickening effect. The present work suggests the feasible utilization of P-CHA and P-HKR as food additives with bioactivity.
除了解决树木的茎和根等副产物未被充分利用的问题外，从麻的花序和叶片中提取大麻素也引起了研究人员的兴趣。本研究采用一种环保的方法，借助有机酸，从剩余的麻树部分中回收果胶。不同的大麻品种——夏洛特天使（CHA）和杭克拉罗格（HKR）——被用作植物材料。两种大麻品种的茎中都含有比根更多的果胶，而酒石酸辅助提取比柠檬酸提取的产率更高。提取酸溶液会影响一些特性，从而区分衍生果胶的功能特性。使用酒石酸提取的果胶具有更高的半乳糖醛酸含量，而使用柠檬酸提取的果胶可以制备出更高甲基化程度的果胶。从 CHA 茎（P-CHA）和 HKR 茎（P-HKR）中提取的果胶样品具有低甲氧基果胶。P-CHA 具有更好的自由基清除能力，而 P-HKR 则表现出更强的还原能力。考虑到功能特性，P-CHA 具有更好的乳化形成能力和泡沫活性，而 P-HKR 则具有更好的增稠效果。本工作表明，P-CHA 和 P-HKR 可作为具有生物活性的食品添加剂进行合理利用。
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