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从 种子粉中提取、纯化和鉴定单萜糖苷。

Extraction, Purification, and Component Identification of Monoterpene Glycosides from Seed Meal.

机构信息

Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, College of Food Science and Engineering, Shandong Agricultural University, Taian 271018, China.

出版信息

Molecules. 2023 Apr 15;28(8):3498. doi: 10.3390/molecules28083498.

Abstract

() seed meal is a byproduct of seed processing, which contains bioactive substances such as monoterpene glycosides, and has not been effectively utilized at present. In this study, monoterpene glycosides were extracted from seed meal using an ultrasound-assisted ethanol extraction process. The monoterpene glycoside extract was then purified by macroporous resin and identified using HPLC-Q-TOF-MS/MS. The results indicated the following optimal extraction conditions: ethanol concentration, 33%; ultrasound temperature, 55 °C; ultrasound power, 400 W; liquid-material ratio, 33:1; and ultrasound time, 44 min. Under these conditions, the yield of monoterpene glycosides was 121.03 mg/g. The purity of the monoterpene glycosides increased from 20.5% (crude extract) to 71.2% (purified extract) when using LSA-900C macroporous resin. Six monoterpene glycosides (oxy paeoniflorin, isomaltose paeoniflorin, albiflorin, 6'-O-β-D-glucopyranoside albiflorin, paeoniflorin, and Mudanpioside i) were identified from the extract using HPLC-Q-TOF-MS/MS. The main substances were albiflorin and paeoniflorin, and the contents were 15.24 mg/g and 14.12 mg/g, respectively. The results of this study can provide a theoretical basis for the effective utilization of seed meal.

摘要

(牡丹)籽油粕是牡丹籽油加工的副产物,含有如单萜苷类等生物活性物质,目前尚未得到有效利用。本研究采用超声辅助乙醇提取法从牡丹籽油粕中提取单萜苷类物质,然后用大孔树脂对单萜苷提取物进行纯化,并采用高效液相色谱-四极杆飞行时间质谱联用(HPLC-Q-TOF-MS/MS)进行鉴定。结果表明,最佳提取条件为:乙醇浓度 33%、超声温度 55℃、超声功率 400W、液料比 33:1、超声时间 44min。在此条件下,单萜苷得率为 121.03mg/g。使用 LSA-900C 大孔树脂后,单萜苷的纯度从 20.5%(粗提物)提高到 71.2%(纯化提取物)。采用 HPLC-Q-TOF-MS/MS 从提取物中鉴定出 6 种单萜苷(氧化芍药苷、异麦芽糖芍药苷、白芍苷、6'-O-β-D-吡喃葡萄糖基白芍苷、芍药苷和牡丹皮苷 i)。主要物质为白芍苷和芍药苷,含量分别为 15.24mg/g 和 14.12mg/g。本研究结果可为牡丹籽油粕的有效利用提供理论依据。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b22f/10144463/3c72b119e03c/molecules-28-03498-g001.jpg

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