Limonin extraction method

• Main Authors: Ni Hui, Gao Qiufen, Du Xiping, Yang Yuanfan, Wu Ling, Xiao Anfeng, Cai Huinong, Chen Feng, Huang Gaoling
• Format: Patent
• Language: English
• Published: 20.02.2018
• Subjects: CHEMISTRY; FOODS OR FOODSTUFFS; FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J; HUMAN NECESSITIES; METALLURGY; ORGANIC CHEMISTRY; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL; STEROIDS; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES

A limonin extraction method, comprising the following steps: step one, raw material extracting or juicing: directly soaking raw material in water or using a presser to directly juice the raw material to obtain the extract; step two, adding salt and adjusting pH: adding a sulfate solid material or saturated sulfate solution to the extract; adjusting pH to 3-7; step three, heating and preserving heat: heating to 20° C.-100° C. and keeping at the temperature for 10 minutes-110 minutes; step four, centrifuging: centrifuging for 10 minutes at a rotational speed of 2500×g, and obtaining limonin precipitation. Compared with a traditional method, the raw material in the present invention can directly use the extract liquid or juicing liquid without drying, and recover most limonin in water using a precipitation method without complicated apparatus, and is easy to operate and has a low process cost.