Renewable Materials Research Center (CRMR) , Université Laval , Quebec City , Quebec , Canada G1V 0A6.
Institute of Nutrition and Functional Foods (INAF) , Université Laval , Quebec City , Quebec , Canada G1V 0A6.
J Agric Food Chem. 2019 Aug 14;67(32):8819-8838. doi: 10.1021/acs.jafc.9b02664. Epub 2019 Aug 5.
Recent studies about hot-water extracts from sugar maple ( Marsh.) bark and buds demonstrated that they contain high amounts of phenolic structures that may be used as antioxidant food additives. However, the detailed chemical composition of these maple-derived extracts has yet to be determined. By performing high-performance liquid chromatography-diode array detector-high-resolution mass spectrometry (HPLC-DAD-HRMS)-based dereplication, we were able to spike and classify almost 100 metabolites in each hot-water extract. The sugar maple bark hot-water extract is rich in simple phenolic compounds and phenylpropanoid derivatives, while bud extract contains predominantly flavonoids, benzoic acids, and their complex derivatives (condensed and hydrolyzable tannins). Among those chemical structures, we tentatively identified 69 phenolic compounds potentially reported for the first time in the genus . Considering the growing commercial demand in natural products, the phenolic fingerprints of sugar maple bark and bud hot-water extracts will help in promoting these two maple-derived products as new sources of bioactive compounds in the food, nutraceutical, and cosmetic industries.
最近的研究表明，糖枫（Marsh.）树皮和芽的热水提取物中含有大量的酚类结构，可用作抗氧化的食品添加剂。然而，这些枫木衍生提取物的详细化学成分尚未确定。通过进行基于高效液相色谱-二极管阵列检测器-高分辨率质谱（HPLC-DAD-HRMS）的非靶向分析，我们能够对每种热水提取物中的近 100 种代谢物进行加标和分类。糖枫树皮热水提取物富含简单酚类化合物和苯丙烷衍生物，而芽提取物则主要含有类黄酮、苯甲酸及其复杂衍生物（缩合和可水解单宁）。在这些化学结构中，我们暂定鉴定了 69 种酚类化合物，这些化合物可能是首次在该属中报道的。考虑到天然产物的商业需求不断增长，糖枫树皮和芽热水提取物的酚类指纹图谱将有助于将这两种枫木衍生产品作为食品、营养保健品和化妆品行业中生物活性化合物的新来源进行推广。
