CN104082405B - A kind of preparation method of antistaling agent for longan - Google Patents
A kind of preparation method of antistaling agent for longan Download PDFInfo
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- CN104082405B CN104082405B CN201410381115.XA CN201410381115A CN104082405B CN 104082405 B CN104082405 B CN 104082405B CN 201410381115 A CN201410381115 A CN 201410381115A CN 104082405 B CN104082405 B CN 104082405B
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- antistaling agent
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Abstract
The present invention provides the preparation method of a kind of antistaling agent for longan to be: green tea 20 100 weight portion, Fructus Piperis 10 20 weight portion and Pericarpium Citri tangerinae 20 70 weight portion, above raw material is crushed to particle diameter less than 0.5mm by proportioning, solvent extraction through 100 300 weight portions, elder generation's ultrasound wave 10 30 minutes during extraction, place 2 20h, filter to get filtrate, then solvent is removed in filtrate rectification, add 0.1 3 weight portion auxiliary agents and 50 200g water are formulated as antistaling agent for longan.Purpose is for improving the safety that fruit is edible while extending the Arillus Longan life-span, and reduces production cost.There is great promotional value and social benefit.
Description
Technical field
The present invention relates to field of fruit freshness keeping, be specifically related to the preparation method of a kind of antistaling agent for longan.
Background technology
Arillus Longan, rectification of name is called Arillus Longan, is China's south subtropics famous and expensive special local product, and its fruit, rich in nutrition, is liked by people from ancient times, is more considered as precious tonic.Arillus Longan originates in subtropical zone, has the highest nutritive value and an economic worth, Euphoria subtropical zone famous and high-quality fruit, ripe high temperature and humidity season.Fruit water content, sugar content are high, and Repiration is vigorous, the various pathogen of easy infection.Under normal temperature condition, adopt latter 3-4 days with regard to brown stain, sour, rotten, be one of the fruit of more difficult preservation and freshness.Use Longan Storage preservation technique to carry out fresh-keeping, fresh fruit selling pressure can be alleviated, extend the supply phase, increase economic efficiency.
Summary of the invention
For improving the safety that fruit is edible while extending the Arillus Longan life-span, and reducing production cost, the invention provides a kind of efficient fruit antistaling agent, concrete scheme is as follows:
A kind of preparation method of antistaling agent for longan, it is characterized in that: prepared by the raw material of following weight portion: green tea 20-100 weight portion, Fructus Piperis 10-20 weight portion and Pericarpium Citri tangerinae 20-70 weight portion, above raw material is crushed to particle diameter less than 0.5mm by proportioning, solvent extraction through 100-300 weight portion, elder generation's ultrasound wave 10-30 minute during extraction, places 2-20h, filters to get filtrate, then filtrate rectification being removed solvent, the water adding 0.1-3 weight portion auxiliary agent and 50-200 weight portion is formulated as antistaling agent for longan.
Described antistaling agent for longan is prepared by the raw material of following weight portion: green tea 40-80 weight portion, Fructus Piperis 10-20 weight portion, Pericarpium Citri tangerinae 20-50 weight portion.
Described auxiliary dosage be the consumption of 0.5-2 weight portion and water be 80-220 weight portion.
Described solvent is any one of ethanol or propanol, and described auxiliary agent is chitosan.
Ultrasonic Treatment post-heating solvent in raw material abstraction, the temperature of described solvent heating is 50-80 DEG C, and the time needed for extraction is 2-20h.
It is an advantage of the current invention that:
1, using material of vegetable origin green tea, Fructus Piperis and Pericarpium Citri tangerinae, raw material sources the most easily obtain, the antistaling agent safety and environmental protection degradable of preparation, do not affect the taste of fruit, only need clear water to rinse even without cleaning time edible.
2, the extracting solution of green tea, Fructus Piperis and Pericarpium Citri tangerinae exceeds more than 3 times than the fresh-keeping effect of single raw material.
3, extraction process is simple, uses ethanol or propanol that low toxicity is the most nontoxic, and tests prove that a small amount of ethanol or propanol have the effect extending the antistaling agent shelf-life during extraction.
4, first ultrasonic Treatment reheats, and improves extraction efficiency.
Detailed description of the invention:
The present invention is explained further below in conjunction with embodiment, but the present invention is not limited in any form by embodiment.
Embodiment 1, green tea 20g, Fructus Piperis 20g and Pericarpium Citri tangerinae 20g, by above raw material pulverizing to particle diameter less than 0.5mm, add the etoh solvent extraction of 100g, first ultrasound wave 10 minutes, is then heated to 60 DEG C and places 5h, filter to get filtrate, then etoh solvent is removed in filtrate rectification, add 0.5g chitosan and 80g water is formulated as antistaling agent for longan.
Embodiment 2, green tea 40g, Fructus Piperis 10g and Pericarpium Citri tangerinae 30g, by above raw material pulverizing to particle diameter less than 0.5mm, add the etoh solvent extraction of 120g, first ultrasound wave 10 minutes, is then heated to 80 DEG C and places 5h, filter to get filtrate, then etoh solvent is removed in filtrate rectification, add 0.5g chitosan and 100g water is formulated as antistaling agent for longan.
Embodiment 3, green tea 50g, Fructus Piperis 15g and Pericarpium Citri tangerinae 20g, by above raw material pulverizing to particle diameter less than 0.5mm, add the etoh solvent extraction of 150g, first ultrasound wave 10 minutes, is then heated to 70 DEG C and places 8h, filter to get filtrate, then etoh solvent is removed in filtrate rectification, add 0.5g chitosan and 120g water is formulated as antistaling agent for longan.
Embodiment 4, green tea 60g, Fructus Piperis 20g and Pericarpium Citri tangerinae 50g, by above raw material pulverizing to particle diameter less than 0.5mm, add the etoh solvent extraction of 200g, first ultrasound wave 10 minutes, is then heated to 60 DEG C and places 5h, filter to get filtrate, then etoh solvent is removed in filtrate rectification, add 1g chitosan and 150g water is formulated as antistaling agent for longan.
Embodiment 5, green tea 70g, Fructus Piperis 20g and Pericarpium Citri tangerinae 50g, by above raw material pulverizing to particle diameter less than 0.5mm, add the solvent propanol extraction of 220g, first ultrasound wave 10 minutes, is then heated to 60 DEG C and places 5h, filter to get filtrate, then solvent propanol is removed in filtrate rectification, add 1g chitosan and 150g water is formulated as antistaling agent for longan.
Embodiment 6, green tea 80g, Fructus Piperis 10g and Pericarpium Citri tangerinae 50g, by above raw material pulverizing to particle diameter less than 0.5mm, add the solvent propanol extraction of 260g, first ultrasound wave 15 minutes, is then heated to 60 DEG C and places 5h, filter to get filtrate, then solvent propanol is removed in filtrate rectification, add 0.5g chitosan and 150g water is formulated as antistaling agent for longan.
Embodiment 7, green tea 100g, Fructus Piperis 10g and Pericarpium Citri tangerinae 20g, by above raw material pulverizing to particle diameter less than 0.5mm, add the etoh solvent extraction of 280g, first ultrasound wave 20 minutes, is then heated to 60 DEG C and places 5h, filter to get filtrate, then etoh solvent is removed in filtrate rectification, add 2g chitosan and 150g water is formulated as antistaling agent for longan.
Embodiment 8, green tea 20g, Fructus Piperis 20g and Pericarpium Citri tangerinae 70g, by above raw material pulverizing to particle diameter less than 0.5mm, add the etoh solvent extraction of 200g, first ultrasound wave 12 minutes, is then heated to 60 DEG C and places 5h, filter to get filtrate, then etoh solvent is removed in filtrate rectification, add 1g chitosan and 100g water is formulated as antistaling agent for longan.
Comparative example 1, green tea 100g, green tea powder is broken to particle diameter less than 0.5mm, add the etoh solvent extraction of 100g, first ultrasound wave 10 minutes, be then heated to 60 DEG C and place 5h, filter to get filtrate, then etoh solvent is removed in filtrate rectification, add 0.5g chitosan and 100g water is formulated as contrasting antistaling agent 1.
Comparative example 2, Fructus Piperis 100g, Fructus Piperis powder is broken to particle diameter less than 0.5mm, add the etoh solvent extraction of 100g, first ultrasound wave 10 minutes, be then heated to 60 DEG C and place 5h, filter to get filtrate, then etoh solvent is removed in filtrate rectification, add 0.5g chitosan and 100g water is formulated as contrasting antistaling agent 2.
Comparative example 3, Pericarpium Citri tangerinae 100g, Pericarpium Citri tangerinae is crushed to particle diameter less than 0.5mm, add the etoh solvent extraction of 100g, first ultrasound wave 10 minutes, be then heated to 60 DEG C and place 5h, filter to get filtrate, then etoh solvent is removed in filtrate rectification, add 0.5g chitosan and 100g water is formulated as contrasting antistaling agent 3.
Comparative example 4, green tea 100g and Pericarpium Citri tangerinae 30g, by raw material pulverizing to particle diameter less than 0.5mm, add the etoh solvent extraction of 200g, first ultrasound wave 10 minutes, is then heated to 60 DEG C and places 5h, filter to get filtrate, then etoh solvent is removed in filtrate rectification, add 1g chitosan and 100g water is formulated as contrasting antistaling agent 4.
Comparative example 5, green tea 100g and Fructus Piperis 10g, by raw material pulverizing to particle diameter less than 0.5mm, add the etoh solvent extraction of 200g, first ultrasound wave 10 minutes, is then heated to 60 DEG C and places 5h, filter to get filtrate, then etoh solvent is removed in filtrate rectification, add 1g chitosan and 100g water is formulated as contrasting antistaling agent 5.
Comparative example 6, Fructus Piperis 30g and Pericarpium Citri tangerinae 50g, by raw material pulverizing to particle diameter less than 0.5mm, add the etoh solvent extraction of 100g, first ultrasound wave 10 minutes, is then heated to 60 DEG C and places 5h, filter to get filtrate, then etoh solvent is removed in filtrate rectification, add 1g chitosan and 100g water is formulated as contrasting antistaling agent 6.
Fresh-keeping experiment: the Arillus Longan taking new harvesting loads in basket, every 50 one group processes with a kind of antistaling agent, embodiment 1-8, comparative example 1-6 and blank, for 15 groups, the Arillus Longan after processing loads transparent boxes with holes, 5-10 DEG C of preservation after drying, respectively at 7 days, observe after 15 days and 30 days.Observe criterion: whether peel has white point, adds up albomaculatus fruit number；Peel is the most dry and cracked, the quantity that statistics peel is dry and cracked.
Experimental result is as follows:
Can be obtained by above experiment, the present invention has prominent effect in terms of extending longan shelf life.
The above; being only the present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, any those of ordinary skill in the art are in the technical scope that the invention discloses; the change that can readily occur in or replacement, all should contain within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with scope of the claims.
Claims (3)
1. the preparation method of an antistaling agent for longan, it is characterized in that: prepared by the raw material of following weight portion: green tea 20-100 weight portion, Fructus Piperis 10-20 weight portion and Pericarpium Citri tangerinae 20-70 weight portion, above raw material is crushed to particle diameter less than 0.5mm by proportioning, solvent extraction through 100-300 weight portion, elder generation's ultrasound wave 10-30 minute during extraction, places 2-20h, filters to get filtrate, then filtrate rectification being removed solvent, the water adding 0.1-3 weight portion auxiliary agent and 50-200 weight portion is formulated as antistaling agent for longan.
The preparation method of antistaling agent for longan the most according to claim 1, it is characterised in that: described antistaling agent for longan is prepared by the raw material of following weight portion: green tea 40-80 weight portion, Fructus Piperis 10-20 weight portion, Pericarpium Citri tangerinae 20-50 weight portion.
The preparation method of antistaling agent for longan the most according to claim 1, it is characterised in that: ultrasonic Treatment post-heating solvent in raw material abstraction, the temperature of solvent heating is 50-80 DEG C, and the time needed for extraction is 2-20h.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410381115.XA CN104082405B (en) | 2014-08-05 | 2014-08-05 | A kind of preparation method of antistaling agent for longan |
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| CN201410381115.XA CN104082405B (en) | 2014-08-05 | 2014-08-05 | A kind of preparation method of antistaling agent for longan |
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| CN104082405A CN104082405A (en) | 2014-10-08 |
| CN104082405B true CN104082405B (en) | 2016-08-24 |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104904820A (en) * | 2015-06-24 | 2015-09-16 | 南京大地冷冻食品有限公司 | Application of ginger juice and orange peel coating preservation solution to preservation of fruits and vegetables and chilled meat |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1450861A (en) * | 2000-03-03 | 2003-10-22 | 桔感有限公司 | Fruit and vegetable preservative agent |
| CN101433235A (en) * | 2008-12-25 | 2009-05-20 | 福建农林大学 | Chitosan antistaling agent for longan and preparation method thereof |
| CN101766212A (en) * | 2009-01-07 | 2010-07-07 | 蒋进军 | Longan preservative |
-
2014
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1450861A (en) * | 2000-03-03 | 2003-10-22 | 桔感有限公司 | Fruit and vegetable preservative agent |
| CN101433235A (en) * | 2008-12-25 | 2009-05-20 | 福建农林大学 | Chitosan antistaling agent for longan and preparation method thereof |
| CN101766212A (en) * | 2009-01-07 | 2010-07-07 | 蒋进军 | Longan preservative |
Non-Patent Citations (2)
| Title |
|---|
| 《利用中药简易保藏龙眼效果好》;佚名;《福建农业科技》;20001231;第5页 * |
| 《龙眼采后贮藏保鲜技术研究进展》;常世敏等;《广西热带农业》;20051231(第1期);第15-17、20页 * |
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Inventor after: Huang Xinjian Inventor before: Chen Qinglei |
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Effective date of registration: 20170803 Address after: 221245, Xuzhou District, Jiangsu City, Suining Province Liang Ji River North Agricultural Demonstration Zone Three District Patentee after: Jiangsu crown Agriculture Technology Co., Ltd. Address before: 523000 Guangdong Province, Dongguan city Changping town train station inspection building block A Patentee before: DONGGUAN FENGDENGYUAN AGRICULTURAL SCIENCE & TECHNOLOGY CO., LTD. |
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Granted publication date: 20160824 Termination date: 20180805 |