Determination of the Antioxidant Capacity of 'Pistache Amargo' Using a Biosensor Based on Laccase Trametes Versicolor

Autor:	Jorge Juarez-Gomez, Fernando Morales-Anzures, María Teresa Ramírez-Silva, Manuel Palomar-Pardavé, Pastora Salinas-Hernández, Mario Romero-Romo
Rok vydání:	2014
Předmět:	Laccase Antioxidant capacity biology Chemistry Food science biology.organism_classification Biosensor Trametes versicolor
Zdroj:	ECS Transactions. 64:77-81
ISSN:	1938-6737 1938-5862
DOI:	10.1149/06401.0077ecst
Popis:	In the Isthmus of Tehuantepec region of Oaxaca, Mexico, it grows a variety of Pistache of the Anacardiaceae family; the fruit comprises about 68 % weight oil and is rich in polyphenolic compounds, which are antioxidant molecules of great interest today for their beneficial implications to human health, as presently there is a strong interest in finding natural sources of antioxidants. Therefore, this work presents the spectrophotometric studies using the DPPH radical method for the determination of the antioxidant capacity equivalent to caffeic acid in different extracts of the residual pulp "Pistache Amargo". The spectrophotometric method is contrasted with an electrochemical method using a biosensor based on the enzyme Laccase Trametes Versicolor immobilized on a polymeric membrane of polyvinyl alcohol.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2880f76801ab7507e28772e5987e883f https://doi.org/10.1149/06401.0077ecst Zobrazit plný text záznamu