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Modified rice porous starch, and modification method and application thereof

A technology of porous starch, rice, applied in application, food science, tobacco, etc.

Inactive Publication Date: 2011-07-20
ANHUI AGRICULTURAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims at the defects of the existing cigarette filter adsorbent, and aims to provide a new filter adsorbent-modified rice porous starch. The technical problem to be solved is the denaturation method of rice porous starch and the application It has the property of selectively adsorbing harmful components without changing the original quality of cigarettes

Method used

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  • Modified rice porous starch, and modification method and application thereof
  • Modified rice porous starch, and modification method and application thereof
  • Modified rice porous starch, and modification method and application thereof

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Embodiment Construction

[0018] 1. Preparation of rice porous starch: enzymatic hydrolysis

[0019] (1) Process flow:

[0020]

[0021] (2) Process description:

[0022] The concentration of lye for soaking rice is 3%-5%, centrifugation conditions: 3000r / min, 20min, the amount of glucoamylase added is the amount of theoretically hydrolyzing 35% rice starch, the enzymolysis temperature is 40°C, the reaction time is 8h, spray drying : Feed liquid concentration 15%, sample injection flow rate 30mL, air inlet temperature 160°C, atomizer speed 33250r / min, air outlet temperature 65°C. The rice porous starch obtained is as figure 1 shown.

[0023] 2. Preparation of cross-linked esterified starch phosphate

[0024] Add water in the esterification kettle, add rice porous starch and sodium tripolyphosphate (3wt% of starch dry weight) under stirring, adjust pH value to 10 with concentration 25%NaOH solution, react 2 hours at 40 ℃ of temperature, use Adjust the pH to 6.0-6.5 with 30% HCl solution, wash wi...

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Abstract

The invention discloses a modified rice porous starch, which is prepared through esterification reaction between rice porous starch and sodium tripolyphosphate and then through thermal denaturation reaction. The esterification reaction is that the rice porous starch reacts with the sodium tripolyphosphate for 1 to 3h at the temperature of 35 to 45 DEG C when the pH value is 9.5 to 10.5; and the thermal denaturation reaction is carried out on the esterified starch for 2h at the temperature of 90 to 110 DEG C when the water ratio of the esterified starch is 10 to 15 weight percent. The modifiedrice porous starch of the invention can serve as an adsorbent of cigarette filters; the dosage of the modified rice porous starch is 15mg per cigarette filter; the particle-phase radicals and gas-phase radicals in cigarette smoke are reduced by 13.69 percent and 4.47 percent respectively; and the tar content, nicotine content and CO in the cigarette smoke are reduced by 0.2mg, 0.1mg and 0.4mg respectively.

Description

1. Technical field [0001] The invention relates to a cigarette filter additive and a preparation method thereof, in particular to a denatured rice porous starch, a denaturation method thereof and an application as a cigarette filter adsorbent. 2. Background technology [0002] As the contradiction between "smoking and health" becomes increasingly acute, tobacco workers pay more and more attention to selectively remove harmful substances in cigarette smoke and improve the safety of cigarettes. At present, tobacco researchers mainly focus on the development of low-tar cigarette products. There are two main ways to reduce tar: one is to cultivate tobacco varieties with low tar content; the other is to develop filter additives. Existing filter tip additives mainly include adsorbents such as activated carbon, silica gel, molecular sieves and some Chinese herbal medicine components. However, the existing filter adsorbent reduces the original aroma components of cigarettes while r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B31/00C08B31/06A24D3/14
Inventor 杜先锋徐阮园
Owner ANHUI AGRICULTURAL UNIVERSITY
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