Zinc-rich yeast refined extract and preparation method thereof

A zinc-enriched yeast and yeast extract technology, applied in pharmaceutical formulations, cosmetic preparations, cosmetic preparations, etc., can solve problems such as adverse skin irritation, achieve safe absorption and utilization, and eliminate the effects of irritation

Active Publication Date: 2013-06-05
ANGELYEAST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims to provide a zinc-rich yeast extract applied in the field of cosmetics and its preparation method, so as to solve the t

Method used

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  • Zinc-rich yeast refined extract and preparation method thereof
  • Zinc-rich yeast refined extract and preparation method thereof

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Experimental program
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Embodiment approach

[0019] According to a typical implementation of the present invention, when the dry matter mass percentage is 5%, the absorbance of the yeast extract at a wavelength of 410nm is lower than 0.15, which ensures that the color of the yeast extract is close to colorless , Odorless, suitable for coloring and seasoning of cosmetics, has the advantages of strong applicability and wide application fields.

[0020] The raw material of the present invention is a yeast extract product prepared from Saccharomyces cerevisiae or other species of yeast, which can be purchased from the market or obtained by extracting and separating Saccharomyces cerevisiae or other species of yeast.

[0021] The present invention also provides a method for preparing the above-mentioned yeast extract. According to a typical embodiment of the present invention, the preparation method includes the following steps: 1) preparing the yeast extract, and adjusting the zinc content to 5000-20000mg / kg Zinc-rich yeast ...

Embodiment 1

[0028] 1) Prepare yeast extract. Zinc-enriched yeast (zinc content 5000mg / kg) 150kg, add 850kg of purified water, prepare a suspension with a mass percent content of 15%, heat to 55°C, keep warm for 8h, adjust the pH to 6.0, add 1500g of papain, and react for 20 After 1 hour, it was heated to 95° C., incubated for 1 hour, and the supernatant was collected by centrifugation (5000 g centrifugal force, 10 minutes).

[0029] 2) Membrane separation. The above-mentioned yeast extract is formulated into an aqueous solution with a mass percentage of dry matter of 2%, and then the ultrafiltration membrane with a molecular weight cut-off of 20-500KD is used for separation, and a ceramic membrane with a molecular weight cut-off of 500KD is used for membrane separation. Serum.

[0030] 3) High temperature treatment. The supernatant was concentrated in vacuo until the mass percentage of dry matter was 10.2%, and was incubated at 100° C. for 1 hour.

[0031] 4) Decolorization. The supe...

Embodiment 2

[0034] 1) Prepare yeast extract. Add 50kg of zinc-rich yeast (zinc content 20000mg / kg), add 950kg of purified water, prepare a suspension with a mass percentage of 5%, heat to 65°C, keep it warm for 2h, adjust the pH to 5.0, add 500g of papain, and react for 5 After 1 hour, heat to 100° C., keep warm for 2 hours, and collect the supernatant by centrifugation (5000 g centrifugal force, 10 minutes).

[0035] 2) Membrane separation. The yeast extract and purified water are prepared to prepare an aqueous solution with a mass percentage of dry matter of 20%, and a ceramic membrane with a molecular weight cut-off of 100KD is used for membrane separation, and the permeated supernatant is collected to obtain the supernatant. 3) High temperature treatment. The supernatant was concentrated in vacuo until the mass percentage of dry matter was 8.2%, and treated at 120° C. for 0.5 h.

[0036] 4) Decolorization. The supernatant was adjusted to pH 5.0 with hydrochloric acid, and the temp...

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Abstract

The invention discloses a zinc-rich yeast refined extract and a preparation method of the zinc-rich yeast refined extract. The zinc-rich yeast refined extract comprises dry materials and water, wherein the dry materials comprise, by mass, 0.1%-0.7% of zinc element, 20%-70% of protein, 5%-25% of nucleic acid, and the balance impurities, wherein the molecular weight of the protein and the molecular weight of the nucleic acid are 20-500KD. According to the zinc-rich yeast refined extract and the preparation method of the zinc-rich yeast refined extract, the zinc element in the zinc-rich yeast refined extract enables zinc to be combined with protein and polysaccharide which are in yeast bodies in an organic mode through the fact that the yeast absorbs and converts the zinc element during the growing process, and therefore the stimulation function of inorganic zinc to skin is eliminated, the phenomena that chelation, sedimentation and the like between the inorganic zinc and other compositions in cosmetics are possible to happen to result in unpredictable consequences are eliminated too, the zinc existing under the state can be absorbed and utilized by a human body more efficiently and more safely.

Description

technical field [0001] The invention relates to a yeast extract and a preparation method thereof, in particular to a zinc-rich yeast extract applied in the field of cosmetics and a preparation method thereof. Background technique [0002] Zinc is an essential trace element for the human body. It only has 2-3 grams in the human body, but accounts for 15%-20% in the skin. Zinc can help cells divide. When animals are deficient in zinc, in addition to developmental disorders, low reproductive function and bone abnormalities, hair loss and other lesions will also occur. Zinc is an indispensable and important ingredient for healthy skin, and it is extremely important for the proliferation of fibroblasts and the synthesis of collagen fibers. According to the measurement, the zinc in the serum of patients with psoriasis, seborrheic dermatitis, acne vulgaris and other skin diseases is lower than the level of healthy people. [0003] Inorganic zinc such as zinc oxide and zinc sulfat...

Claims

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Application Information

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IPC IPC(8): A61K8/99A61Q19/00
Inventor 张彦俞学锋李知洪余明华姚鹃张海波
Owner ANGELYEAST CO LTD
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