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Method for evaluating ethanol output of fresh sweet potato material

A technology of ethanol production and evaluation method, which is applied in the direction of removing a certain component and weighing, etc., can solve the problems of long evaluation period, cumbersome evaluation method and high evaluation cost, and achieves simple evaluation method, labor saving and short evaluation period. Effect

Inactive Publication Date: 2013-04-03
JIANGSU XUZHOU SWEET POTATO RES CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing ethanol production evaluation of fresh sweet potato adopts fermentation method, and the raw materials must go through the steps of crushing, beating, cooking, liquefaction, saccharification, inoculation, fermentation and distillation, etc., and the evaluation method is cumbersome
Although a lot of research is dedicated to improving the ethanol fermentation process, the evaluation period is still long, usually 45-75 hours, and requires expensive equipment such as special microbial cultivation and fermentation, and the evaluation cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Take Luoshu 96-6 fresh potato cubes, wash them, shred them, weigh 100.00g accurately, put them in an oven at 60°C to dry until constant weight, weigh them, and record the dry rate as 32.70%. The dried sample was pulverized and passed through a 60-mesh sieve. The starch content was determined to be 21.33% and the protein content was 1.80% by near-infrared method or chemical method. Bringing the dry rate value into formula (a) yields ethanol yield of 13.51g / 100g fresh potato, and bringing starch content and protein content into formula (b) yields ethanol yield of 13.58g / 100g fresh potato.

Embodiment 2

[0019] Take Xushu 508 fresh potato cubes, wash them, shred them, weigh 100.00g accurately, put them in an oven at 60°C to dry until constant weight, weigh them, and record the dry rate as 28.39%. The dried sample was pulverized and passed through a 60-mesh sieve. The starch content was determined to be 18.21% and the protein content was 1.21% by near-infrared method or chemical method. Putting the dry rate value into the formula (a) yields an ethanol yield of 11.67g / 100g fresh potato, and putting the starch content and protein content into formula (b) yields an ethanol yield of 11.64g / 100g fresh potato.

Embodiment 3

[0021] Take Ningshu 43-5 fresh potato pieces, wash them, shred them, weigh 100.00g accurately, put them in an oven at 60°C to dry until constant weight, weigh them, and record the dry rate as 23.40%. The dried sample was pulverized and passed through a 60-mesh sieve. The starch content was 12.96% and the protein content was 1.19% by near-infrared method or chemical method. Putting the dry rate value into the formula (a) yields an ethanol content of 9.54g / 100g fresh potato, and putting the starch content and protein content into formula (b) yields an ethanol content of 9.53g / 100g fresh potato.

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Abstract

The invention relates to a sweet potato processing technique, and in particular relates to a method for evaluating the ethanol output of a fresh sweet potato material, belonging to the technical field of deep agricultural product processing. The method comprises the following steps of: measuring the dry rate value by using a drying method by using fresh sweet potatoes as the raw material, and measuring the starch and protein content values by using a near infrared method or a chemical method; and evaluating the ethanol output of the fresh sweet potatoes according to the dry rate and the starch content and protein content values of the fresh sweet potatoes. The method is short in evaluation period, i.e. the evaluation period is shortened by more than twice, so that a great quantity of labor and material resources are saved; and moreover, the method is strong in practical applicability, and has important guiding significance in breeding of sweet potato varieties special for fuel ethanol.

Description

technical field [0001] The invention relates to a sweet potato processing technology, in particular to an ethanol yield evaluation method of fresh sweet potato raw materials, and belongs to the technical field of deep processing of agricultural products. Background technique [0002] The energy crisis is a huge challenge that mankind is about to face, and the environmental pollution caused by fossil fuels is becoming more and more serious. Research preferred. Brazil and the United States are major producers of fuel ethanol, mainly using sugarcane and corn as raw materials to produce most of the ethanol as vehicle fuel. In the development of fuel ethanol in my country, the selection of raw materials must follow the principle of "not competing with others for food and land". According to my country's national conditions, the non-food crops suitable for the production of fuel ethanol mainly include sweet potato, cassava and sweet sorghum. [0003] Sweet potato is an annual or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/04
Inventor 孙健岳瑞雪钮福祥徐飞朱红
Owner JIANGSU XUZHOU SWEET POTATO RES CENT
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