Keratinases from Coriolopsis byrsina as an alternative for feather degradation: applications for cloth cleaning based on commercial detergent compatibility and for the production of collagen hydrolysate

2020 ◽  
Vol 42 (11) ◽  
pp. 2403-2412
Author(s):  
Carlos Eduardo Duffeck ◽  
Cíntia Lionela Ambrosio de Menezes ◽  
Maurício Boscolo ◽  
Roberto da Silva ◽  
Eleni Gomes ◽  
...  
Keyword(s):  
Feather Degradation ◽  
Collagen Hydrolysate ◽  
Detergent Compatibility ◽  
Commercial Detergent

scholarly journals Collagen Hydrolysate Prepared from Chicken By-Product as a Functional Polymer in Cosmetic Formulation

Molecules ◽  
2021 ◽  
Vol 26 (7) ◽  
pp. 2021
Author(s):  
Aneta Prokopová ◽  
Jana Pavlačková ◽  
Pavel Mokrejš ◽  
Robert Gál
Keyword(s):  
Water Loss ◽  
Transepidermal Water Loss ◽  
Skin Hydration ◽  
Skin Elasticity ◽  
Cosmetic Products ◽  
Collagen Hydrolysate ◽  
Carbopol Gel ◽  
Cosmetic Formulation ◽  
The Right ◽  
Positive Effect

Chicken stomachs can be processed into collagen hydrolysate usable in cosmetic products. The aim of the study was to verify the effects of a carbopol gel formulation enriched with 1.0% (w/w) chicken hydrolysate on the properties of the skin in the periorbital area after regular application twice a day for eight weeks in volunteers ageed 50 ± 9 years. Skin hydration, transepidermal water loss (TEWL), skin elasticity and skin relief were evaluated. Overall, skin hydration increased by 11.82% and 9.45%, TEWL decreased by 25.70% and 17.80% (always reported for the right and left area). Generally, there was an increase in skin elasticity, a decrease in skin roughness, as the resonance times decreased by 85%. The average reduction of wrinkles was 35.40% on the right and 41.20% on the left. For all results, it can be seen that the longer the cosmetic gel formulation is applied, the better the results. Due to the positive effect on the quality and functionality of the skin, it is possible to apply the cosmetic gel formulation in the periorbital area. The advantage of the product with chicken collagen hydrolysate is also the biocompatibility with the skin and the biodegradability of the formulation.

scholarly journals Effects of Glucosamine and Chondroitin Sulfate on Cartilage Metabolism in OA: Outlook on Other Nutrient Partners Especially Omega-3 Fatty Acids

2011 ◽  
Vol 2011 ◽  
pp. 1-17 ◽  
Author(s):  
Jörg Jerosch
Keyword(s):  
Fatty Acids ◽  
Chondroitin Sulfate ◽  
Degenerative Joint Disease ◽  
Joint Disease ◽  
Omega 3 Fatty Acids ◽  
Omega 3 ◽  
Collagen Hydrolysate ◽  
Cartilage Metabolism ◽  
Promising Therapeutic Approach ◽  
Anti Inflammatory

Osteoarthritis (OA) is a degenerative joint disease that is characterized by increasing loss of cartilage, remodeling of the periarticular bone, and inflammation of the synovial membrane. Besides the common OA therapy with nonsteroidal anti-inflammatory drugs (NSAIDs), the treatment with chondroprotectives, such as glucosamine sulfate, chondroitin sulfate, hyaluronic acid, collagen hydrolysate, or nutrients, such as antioxidants and omega-3 fatty acids is a promising therapeutic approach. Numerous clinical studies have demonstrated that the targeted administration of selected micronutrients leads to a more effective reduction of OA symptoms, with less adverse events. Their chondroprotective action can be explained by a dual mechanism: (1) as basic components of cartilage and synovial fluid, they stimulate the anabolic process of the cartilage metabolism; (2) their anti-inflammatory action can delay many inflammation-induced catabolic processes in the cartilage. These two mechanisms are able to slow the progression of cartilage destruction and may help to regenerate the joint structure, leading to reduced pain and increased mobility of the affected joint.

scholarly journals Amelioration of estrogen deficiency-induced obesity by collagen hydrolysate

2016 ◽  
Vol 13 (11) ◽  
pp. 853-857 ◽  
Author(s):  
Tsay-I Chiang ◽  
I-Chang Chang ◽  
Hsueh-Hui Lee ◽  
Kuang hui Hsieh ◽  
Yung-Wei Chiu ◽  
...  
Keyword(s):  
Estrogen Deficiency ◽  
Collagen Hydrolysate

Culture Duration Modulates Collagen Hydrolysate-Induced Tissue Remodeling in Chondrocyte-Seeded Agarose Hydrogels

2007 ◽  
Vol 35 (11) ◽  
pp. 1914-1923 ◽  
Author(s):  
Kenneth W. Ng ◽  
Justin D. Saliman ◽  
Evan Y. Lin ◽  
Lauren Y. Statman ◽  
Lindsay E. Kugler ◽  
...  
Keyword(s):  
Tissue Remodeling ◽  
Collagen Hydrolysate ◽  
Culture Duration

Chryseobacterium aquifrigidense keratinase liberated essential and nonessential amino acids from chicken feather degradation

2021 ◽  
pp. 1-30
Author(s):  
Amahle Bokveld ◽  
Nonso E. Nnolim ◽  
Tennison O. Digban ◽  
Anthony I. Okoh ◽  
Uchechukwu U. Nwodo
Keyword(s):  
Amino Acids ◽  
Chicken Feather ◽  
Feather Degradation ◽  
Nonessential Amino Acids

scholarly journals Bioutilization of Chicken Feather Wastes by Newly Isolated Keratinolytic Bacteria Into Protein Hydrolysates With Improved Functionalities

2021 ◽  
Author(s):  
Saugat Prajapati ◽  
Sushil Koirala ◽  
Anil Kumar Anal
Keyword(s):  
Amino Acid ◽  
Soluble Protein ◽  
Environmental Remediation ◽  
Amino Acid Profile ◽  
Total Soluble Protein ◽  
Feather Degradation ◽  
Biochemical Tests ◽  
Box Behnken Design ◽  
Degrading Bacteria ◽  
Chicken Farm

Abstract In this study, a novel feather-degrading bacteria B. amyloliquefaciens KB1 was isolated from chicken farm bed (CFB), identified by morphological, physico-biochemical tests followed by 16s rDNA analysis. Among observed isolates, bacterial isolate (KB1) showed the highest degree of feather degradation (74.78 ± 2.94 %) and total soluble protein (205 ± 0.03 mg/ g). Using the same species of bacteria, the optimum fermentation condition was found at 40 oC, pH 9, and 1 % (w/v) feather concentration that produced 260 mg/ g of soluble protein and 86.16 % feather degradation using response surface methodology in a Box-Behnken design space. The obtained hydrolysates exhibited bioactive properties. The amino acid profile showed the increase in concentration of essential amino acid compared with feather meal broth. The selection of safe screening source of this new bacteria in CFB produced hydrolysates with enhanced bioactivity applicable for food, feed, and cosmetic applications along with environmental remediation.

scholarly journals Contribution of quasi-fibrillar superstructures in peroxide quenching by collagen peptides derived from fish processing by-products and their application as natural food additives

2021 ◽  
Author(s):  
K Saleem ◽  
Pritha Dey ◽  
Charitha Sumeet ◽  
Mayur Bajaj ◽  
Y Geetika ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Cultured Cells ◽  
Food Additives ◽  
Lipid Peroxide ◽  
Natural Food ◽  
Type I ◽  
Collagen Hydrolysate ◽  
Simulated Digestion ◽  
Wide Range ◽  
Fibrillar Network

AbstractThis study attempts to identify the significant role played by the secondary structure of collagen-derived peptides that are involved in lipid peroxide quenching in food products. Collagen was extracted from the skin of Perch and swim bladder of Rohu at 45-78% efficiency. It was identified as type-I based on a high molecular weight (110kDa) and its ion-exchange elution profile. The collagen samples were enzymatically hydrolyzed and collagen hydrolysate (CH) was extracted with an efficiency of 0.67-0.74g/g of collagen. The CH samples displayed a molecular weight in the range of 8.2-9.7kDa and exhibited a higher abundance of charges resulting in higher solubility. The structural studies revealed that the CH peptides existed in polyproline-II helix and formed a mimic-triple helix in a wide range of pH. In neutral and alkaline pH, the mimic helices joined to form a hierarchical quasi-fibrillar network that was smaller than collagen fibrils but also more dynamic. The CH exhibited >95% degradation in 15h through simulated digestion. The CH were able to decrease peroxide formation by 84.5-98.9% in commercially available cod liver and almond oil and increased the shelf life of soya bean oil by a factor of 5 after 6 months of storage. The addition of CH to cultured cells quenched peroxide ions generated in situ and decreased stressor activity by a factor of 12. The reason behind the high efficacy of CH was deciphered to be the proximal charge stabilization by the quasi-fibrillar network, which allowed efficient peroxide quenching and long-term stability.

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