Engineered Large Spider Eggcase Silk Protein for Strong Artificial Fibers

2012 ◽  
Vol 25 (8) ◽  
pp. 1216-1220 ◽  
Author(s):  
Zhi Lin ◽  
Qinqiu Deng ◽  
Xiang-Yang Liu ◽  
Daiwen Yang
Keyword(s):  
Silk Protein ◽  
Large Spider

scholarly journals Changes in Amino Acid Profiles and Bioactive Compounds of Thai Silk Cocoons as Affected by Water Extraction

Molecules ◽  
2021 ◽  
Vol 26 (7) ◽  
pp. 2033
Author(s):  
Chuleeporn Bungthong ◽  
Sirithon Siriamornpun
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Biological Activities ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Silk Protein ◽  
Extraction Time ◽  
Antioxidant Power ◽  
Silk Cocoon ◽  
Amino Acid Profiles

Silk proteins have many advantageous components including proteins and pigments. The proteins—sericin and fibroin—have been widely studied for medical applications due to their good physiochemical properties and biological activities. Various strains of cocoon display different compositions such as amino-acid profiles and levels of antioxidant activity. Therefore, the objectives of this study were to find a suitable silk protein extraction method to obtain products with chemical and biological properties suitable as functional foods in two strains of Bombyx mori silk cocoon (Nangsew strains; yellow cocoon) and Samia ricini silk cocoon (Eri strains; white cocoon) extracted by water at 100 °C for 2, 4, 6 and 8 h. The results showed that Nangsew strains extracted for 6 h contained the highest amounts of protein, amino acids, total phenolics (TPC) and total flavonoids (TFC), plus DPPH radical-scavenging activity, ABTS radical scavenging capacity, and ferric reducing antioxidant power (FRAP), anti-glycation, α-amylase and α-glucosidase inhibition. The longer extraction time produced higher concentrations of amino acids, contributing to sweet and umami tastes in both silk strains. It seemed that the bitterness decreased as the extraction time increased, resulting in improvements in the sweetness and umami of silk-protein extracts.

scholarly journals Functional silk fibroin hydrogels: preparation, properties and applications

2021 ◽  
Author(s):  
Haiyan Zheng ◽  
Baoqi Zuo
Keyword(s):  
Silk Fibroin ◽  
Silk Protein ◽  
Current Status ◽  
Protein Hydrogels

This article reviews the current status of the preparation, properties and application of functional silk protein hydrogels.

Studying on Preperation and Emulsifying Properties of Silk Protein Calcium Salt Made from Waste Silk

2011 ◽  
Vol 197-198 ◽  
pp. 60-64 ◽  
Author(s):  
Jun Sheng Li ◽  
Hai Tao Cheng
Keyword(s):  
Aqueous Solution ◽  
Calcium Chloride ◽  
Salt Solution ◽  
Chloride Solution ◽  
Calcium Salt ◽  
Calcium Chloride Solution ◽  
Silk Protein ◽  
Emulsifying Properties ◽  
Emulsification Capacity ◽  
New Protein

One key step for silk protein further uses is to let them be dissolved in aqueous solution. However, the silk protein is usually not soluble in aqueous solution. Silk protein dissolved in calcium chloride solution is one of the few effective ways. Silk fibroin was well dissolved in 15-20min. in boiling calcium chloride solution [50% (w/v)] with the ratio of 15g dry waste silk per100mL calcium chloride solution. After dialysis, silk protein calcium salt unexpectedly showed excellent emulsification capacity and stability. Only 0.8-1.2% of silk protein calcium salt solution (50mL) could let 50mL soybean salad oil be mixed and emulsified well. Silk protein calcium salt may be used as a new protein-based surfactant.

The fractal self-assembly of the silk protein sericin

Soft Matter ◽  
2010 ◽  
Vol 6 (9) ◽  
pp. 2066 ◽  
Author(s):  
Tejas S. Khire ◽  
Joydip Kundu ◽  
Subhas C. Kundu ◽  
Vamsi K. Yadavalli
Keyword(s):  
Self Assembly ◽  
Silk Protein
Sign in / Sign up

Export Citation Format

Share Document