TH19277Y - Method for preparing antioxidant and pectin extracts from young durian fruit. - Google Patents

Abstract

------March 26, 2021------(OCR) This invention relates to a process for preparing antioxidant extracts and pectin from young durian fruit. The steps are as follows: Wash the young durian fruit thoroughly, slice it thinly, dry it, and grind it into a fine powder. Then, extract the resulting powder with ethanol or water. For ethanol extraction, mix the dried durian powder with an ethanol solution in water and extract for 10 minutes to 24 hours. Filter and discard the solids. Dry the resulting clear solution until the volume of the crude extract is 1 part in 10 to 1 part in 20 of the starting solution. Then, freeze-dry the resulting solution into a powder. For water extraction, mix the dried durian powder with water for 10 minutes to 24 hours. Filter and discard the solids. Dry the resulting clear solution into a powder using freeze-drying. ------------ Page 1 of 1 page. Summary of the Invention. This invention relates to a process for preparing antioxidant extracts and pectin from young durian fruit. The steps are as follows: Young durian fruit is washed thoroughly, sliced thinly, dried, and ground into a fine powder. The dried durian powder is then extracted using ethanol or water. For ethanol extraction, the dried durian powder is mixed with an ethanol solution in water and extracted for 10 minutes to 24 hours. The solids are then filtered out. The resulting clear solution is dried until the volume of the crude extract is approximately 1/10 to 1/20 of the starting solution. This solution is then freeze-dried into a powder. For water extraction, the dried durian powder is mixed with water and extracted for 10 minutes to 24 hours. The solids are then filtered out. The resulting clear solution is then freeze-dried into a powder.

Claims (7)

------26/03/2021------(OCR) 1. Preparation method for antioxidant extracts and pectin from young durian fruit, which involves the following steps: (a) Preparation of dried young durian powder: Young durian fruits that are 30 to 45 days old after flowering and have a length of 6 to 12 centimeters are washed thoroughly, sliced thinly, either whole or with the thorns removed. Then, they are dried by sun-drying for 8 to 72 hours, or by oven drying at a temperature between 37 and 60 degrees Celsius for 6 to 48 hours, or by freeze-drying under pressure at a temperature between -40 and -60 degrees Celsius for 12 to 72 hours. Then, they are ground into a fine powder. (b) Extraction of substances from dried young durian powder with ethanol or water: The steps are as follows: - Ethanol extraction: Mix the dried young durian powder obtained in step (a) with the ethanol solution in water. At concentrations ranging from 5 to 100 percent (v/v), in a ratio of dry young durian powder to aqueous ethanol solution in the range of 1:5 to 1:50 by weight (g) to volume (ml), extract for 10 minutes to 24 hours. Then filter to remove the solids. The resulting clear solution is then dried using a vacuum evaporator at a temperature of 35 to 45 degrees Celsius for 5 to 15 minutes until the volume of the crude extract solution is reduced to 1 part in 10 to 1 part in 20 parts of the starting solution. The resulting solution is then dried into a powder. - Water extraction: The dry young durian powder obtained in step (a) is mixed with water in a ratio of dry young durian powder to water in the range of 1:25 to 1:100 by weight (g) to volume (ml) for 10 minutes to 24 hours. Then filter to remove the solids. 1. The preparation method for the antioxidant and pectin extracts from young durian fruit according to claim 1, where the optimal drying in step (a) is freeze-drying. 2. The preparation method for the antioxidant and pectin extracts from young durian fruit according to claim 1, where the optimal drying in step (a) is freeze-drying. 3. The preparation method for the antioxidant and pectin extracts from young durian fruit according to claim 1, where the optimal concentration of ethanol solution in the ethanol extraction step is 50 percent (v/v). 4. The preparation method for the antioxidant and pectin extracts from young durian fruit according to claim 1, where the optimal ratio of dry young durian powder to ethanol solution in water is 1 to 50 by weight (g) to volume (ml). 5. 6. The method for preparing the antioxidant and pectin-containing extracts from young durian fruit according to Patent 1, where the optimal ethanol extraction time is 40 minutes. 7. The method for preparing the antioxidant and pectin-containing extracts from young durian fruit according to Patent 1, where the optimal ratio of dry young durian powder to water is 1 to 50 by weight (g) to volume (ml). 8. The method for preparing the antioxidant and pectin-containing extracts from young durian fruit according to Patent 1, where the optimal water extraction time is 40 minutes. ------------ Page 1 of 2 pages. Patents 1. Preparation of antioxidant and pectin extracts from young durian fruit, which involves the following steps: (a) Preparation of dried young durian powder: Young durian fruits that are 30 to 45 days old after flowering and have a length of 6 to 12 centimeters are washed thoroughly, sliced thinly using the whole fruit or removing the thorns, then dried by sun-drying for 8 to 72 hours, or in an oven at a temperature between 37 and 60 degrees Celsius for 6 to 48 hours, or freeze-dried under pressure at a temperature between -40 and -60 degrees Celsius for 12 to 72 hours, and then ground into a fine powder. (b) Extraction of substances from the dried young durian powder using one of the following methods: - Ethanol extraction: Mix the dried young durian powder obtained in step (a) with an ethanol solution in water. At concentrations ranging from 5 to 100 percent (v/v), in a ratio of dried young durian powder to aqueous ethanol solution of 1:5 to 1:50 by weight (g) to volume (ml), extraction was performed for 10 minutes to 24 hours. The solids were then filtered and discarded. The resulting clear solution was then dried using a vacuum evaporator at a temperature of 35 to 45 degrees Celsius for 5 to 15 minutes until the volume of the crude extract solution was reduced to 1 part in 10 to 1 part in 20 parts of the starting solution. The resulting solution was then freeze-dried under pressure at a temperature of -40 to -60 degrees Celsius for 12 to 72 hours. - Water extraction. Mix the dried durian powder obtained in step (a) with water in a ratio of 1 to 25 to 1 to 100 by weight (grams) to volume (milliliters) for 10 minutes to 24 hours. Then filter and discard the solids. The resulting clear solution is then freeze-dried under pressure at a temperature between -40 and -60 degrees Celsius for 12 to 72 hours. 2. The method for preparing the antioxidant extract and pectin from young durian fruit according to Patent 1, where the appropriate drying in step (a) is freeze-drying. 3. Preparation method for antioxidant extract and pectin from young durian fruit according to Patent 1, where the optimal concentration of ethanol solution in the ethanol extraction step is 50 percent (v/v). Page 2 of 2. 4. Preparation method for antioxidant extract and pectin from young durian fruit according to Patent 1, where the optimal ratio of dry young durian powder to aqueous ethanol solution is 1 to 50 by weight (g) to volume (ml). 5. Preparation method for antioxidant extract and pectin from young durian fruit according to Patent 1, where the optimal ethanol extraction time is 40 minutes. 6. Preparation method for antioxidant extract and pectin from young durian fruit according to Patent 1, where the optimal ratio of dry young durian powder to water is 1 to 50 by weight (grams) to volume (milliliters). 7. Preparation method for antioxidant extract and pectin from young durian fruit according to Patent 1, where the optimal water extraction time is 40 minutes.