Method for ultrasonic extracting and resin purifying sweetening agent in Lithocarpus polysachyus rehd leaf
A technology of ultrasonic wave and sweetener, which is applied in the field of ultrasonic extraction and resin purification of sweeteners in the leaves of Cote abacus, which can solve the problems of unfavorable formulation of quality standards for sweet tea products and less sweeteners
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[0021] 1 Materials and methods
[0022] 1.1 Materials
[0023] The leaves of Lithocarpus litseifolius (Hance) Chun were collected in Zhijiang County, Hunan Province, and identified as the leaves of Lithocarpus litseifolius (Hance) Chun.
[0024] 1.2 Reagents and instruments and extraction methods
[0025] AB-8 type macroporous resin Tianjin Haiguang Chemical Co., Ltd.; Phloridin and Neohesperidin Dihydrochalcone (NHDC) reference substance (>99%) Sigma Company; Chromatography Methanol Tianjin Kemiou Chemical Reagent Co., Ltd.; Pure water from Huaihua Wahaha Hengfeng Beverage Co., Ltd.; ethanol, hydrochloric acid, sodium hydroxide, sodium dihydrogen phosphate, etc. were of analytical grade.
[0026] CTXNW-10B Ultrasonic Cycle Extractor Beijing Hongxianglong Biotechnology Development Co., Ltd.; RE-210 Rotary Evaporator Shanghai Yarong Biochemical Instrument Factory; LC-20A High Performance Liquid Chromatograph Japan Shimadzu Bio-Instrument Co., Ltd.; AL104 Electronic Balance US...
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