Tags

Type your tag names separated by a space and hit enter

Changes in Amino Acid Profiles and Bioactive Compounds of Thai Silk Cocoons as Affected by Water Extraction.
Molecules. 2021 Apr 02; 26(7)M

Abstract

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.

Authors+Show Affiliations

Research Unit of Process and Product Development of Functional Foods, Department of Food Technology and Nutrition, Faculty of Technology, Mahasarakham University, Kantarawichai, Mahasarakham 44150, Thailand.Research Unit of Process and Product Development of Functional Foods, Department of Food Technology and Nutrition, Faculty of Technology, Mahasarakham University, Kantarawichai, Mahasarakham 44150, Thailand.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

33918380

Citation

Bungthong, Chuleeporn, and Sirithon Siriamornpun. "Changes in Amino Acid Profiles and Bioactive Compounds of Thai Silk Cocoons as Affected By Water Extraction." Molecules (Basel, Switzerland), vol. 26, no. 7, 2021.
Bungthong C, Siriamornpun S. Changes in Amino Acid Profiles and Bioactive Compounds of Thai Silk Cocoons as Affected by Water Extraction. Molecules. 2021;26(7).
Bungthong, C., & Siriamornpun, S. (2021). Changes in Amino Acid Profiles and Bioactive Compounds of Thai Silk Cocoons as Affected by Water Extraction. Molecules (Basel, Switzerland), 26(7). https://doi.org/10.3390/molecules26072033
Bungthong C, Siriamornpun S. Changes in Amino Acid Profiles and Bioactive Compounds of Thai Silk Cocoons as Affected By Water Extraction. Molecules. 2021 Apr 2;26(7) PubMed PMID: 33918380.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Changes in Amino Acid Profiles and Bioactive Compounds of Thai Silk Cocoons as Affected by Water Extraction. AU - Bungthong,Chuleeporn, AU - Siriamornpun,Sirithon, Y1 - 2021/04/02/ PY - 2021/03/10/received PY - 2021/03/26/revised PY - 2021/03/31/accepted PY - 2021/4/30/entrez PY - 2021/5/1/pubmed PY - 2021/5/14/medline KW - antioxidants KW - biological properties KW - sericin KW - silk protein extraction KW - water extraction JF - Molecules (Basel, Switzerland) JO - Molecules VL - 26 IS - 7 N2 - 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. SN - 1420-3049 UR - https://www.unboundmedicine.com/medline/citation/33918380/Changes_in_Amino_Acid_Profiles_and_Bioactive_Compounds_of_Thai_Silk_Cocoons_as_Affected_by_Water_Extraction_ L2 - https://www.mdpi.com/resolver?pii=molecules26072033 DB - PRIME DP - Unbound Medicine ER -