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Studies on the Preparation and Functions of Seaweed Dietary Fiber Complex

Author: LvZhongZhong
Tutor: GuanHuaShi
School: Ocean University of China
Course: Medicinal Chemistry
Keywords: Kelp XOS Dietary fiber complex Intestinal flora Laxative effect
CLC: R151
Type: Master's thesis
Year: 2009
Downloads: 337
Quote: 4
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Abstract


Kelp is known as a natural health food consumption in China has a long history. Seaweed rich in a variety of biologically active substances, not only is a favorite vegetable is an important industrial raw materials. At present, China has formed alginate alginate, mannitol, iodine products industrial products. Kelp industrial utilization rate is only 30%, about 2/3 of the kelp ingredients has not yet been used, is not only a waste of a lot of natural resources, but also brought a series of environmental pollution problems. How to improve the kelp utilization, turning waste into treasure, causing more and more attention to this issue. Kelp ingredients, in addition to the component have been used, mainly crude protein, crude fiber and ash, in which the content is dietary fiber. On the other hand, the lack of dietary fiber caused by \This paper is based on these reflections, starting from the kelp raw materials, looking for a new use of the kelp industrialized route the kelp after flooding, enzymatic hydrolysis water extraction the filtrate extract rich in iodine and polysaccharides for the production of functional beverages, kelp the residue analysis prepared kelp dietary fiber, and to test its preparation of dietary fiber to improve the activity of the gastrointestinal tract. Xylooligosaccharides, added on this basis to prepare a better biological activity of seaweed composite dietary fiber. The kelp after flooding, enzymatic hydrolysis water extraction process, the iodine content can be as high as 93.5μg/100ml total sugar extraction rate of 15.27% and kelp utilization rate of 37.8%, significantly higher than that of several other extraction methods, able to effectively extract kelp in some functional substances. And the color of the extract is relatively shallow, easy decolorization. Therefore selected this method of as kelp comprehensive utilization extraction method, after extraction solution rich in iodine, polysaccharides, do not add the chemical composition of the acid and alkali, lighter in color and can be used directly for the iodine-rich functional beverages, seafood manufacture of seasonings additive. Nutrients seaweed residue analysis: dietary fiber content of 51.13%, and 16.14% of the protein content, and amino acid analysis to determine the kelp residue is a very good protein source of nutrition, thereby determining dietary fiber and protein-kelp residue two major use of direction. Kelp slag as raw material, and the kelp dietary fiber preparation, preparation process, we investigated the amount of and enzymatic time on the papain remove protein, dietary fiber, found that the amount of enzyme in 0.5%, enzymatic hydrolysis time 2 hours can be a good removal of protein kelp slag. The effects of temperature, concentration of H202, bleaching time, the feed solution determined than the impact of the kelp dietary fiber decolorization seaweed dietary fiber decolorization conditions under the experimental conditions for the temperature 90 ° C, the H202 concentration of 12%, decolorization time was 120min, solid to liquid 1:15 decolorization effect, the kelp residue dietary fiber slightly yellow. Analysis of the nutrients of the the kelp dietary fiber prepared, the results showed that the kelp dietary fiber in dietary fiber content of up to 74.76%, 1.56% protein, 21.18% ash. Of the kelp dietary fiber functional activation, we measured some of its physical and chemical properties: the role of swelling and water holding capacity, the amount of heavy metals largest bondage, N02-adsorption. The results are as follows: 859% water holding capacity of the kelp dietary fiber powder, swelling to 12.3 ml / g; pair of Cd 2 Cu 2 pb the largest of the three in the heavy metal ions bound amount, respectively, to 37.27μmol / g 29.6μmol / g, 31.57μmol / g; pH2.0 and pH7.0 were 1.42mg / g N02-adsorption and 1.04mg / g, the physical and chemical properties superior to the seaweed and kelp slag, showing very good quality dietary fiber. Promote constipation model mice laxative function kelp dietary fiber study, mice were given daily gavage the kelp dietary fiber suspension of 14 days, the successful modeling precursor, compared with the model group, low, medium, high dose group the kelp dietary fiber can increase constipation mouse small intestine ink propulsion rate (p lt; 0.01), shortening the experimental mice tablets melena time (p lt; 0.05); increase in laboratory mice 5 hours row melena the number of black total weight (p lt; 0.01). Determination method known according to the \Good with seaweed dietary fiber can not regulate gastrointestinal flora, dietary fiber and XOS composite kelp, preparation of the seaweed composite dietary fiber, dietary fiber in seaweed composite improve gastrointestinal function, we draw the seaweed composite dietary fiber is not only has the kelp dietary fiber alone promote bowel function, also has a role in improving the gastrointestinal flora, thus based on the \The determination method known seaweed dietary fiber complex regulation of the mice intestinal flora and promote laxative function.

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