Ahmet Uysal1, Gokhan Zengin2, Adriano Mollica3, Erdogan Gunes4, Marcello Locatelli5, Turgut Yilmaz6, Abdurrahman Aktumsek4. 1. Deparment of Medicinal Laboratory, Vocational School of Health Services, Selcuk University, Turkey. 2. Selcuk University, Science Faculty, Department of Biology, Konya-Turkey. Electronic address: gokhanzengin@selcuk.edu.tr. 3. University "G. d'Annunzio" Chieti-Pescara, Department of Pharmacy, 66100, Chieti-Italy. 4. Selcuk University, Science Faculty, Department of Biology, Konya-Turkey. 5. University "G. d'Annunzio" Chieti-Pescara, Department of Pharmacy, 66100, Chieti-Italy; Interuniversity Consortium of Structural and Systems Biology, 00136, Roma-Italy. 6. Ankara University, Faculty of Pharmacy, Department of Pharmaceutical Botany, Ankara-Turkey.
Abstract
BACKGROUND: The Cotoneaster species are widely used as traditional purposes in different countries including Turkey. PURPOSE: The study was performed to evaluate the biological and chemical profile of two extracts (methanol (T-Me; F-Me) and water (T-W; F-W)) from two parts (twigs and fruits) of Cotoneaster integerrimus. MATERIALS AND METHODS: Antioxidant (free radical scavenging (DPPH), reducing power (CUPRAC and FRAP), phosphomolybdenum and metal chelating), enzyme inhibitory (cholinesterase, tyrosinase, α-amylase and α-glucosidase), antimicrobial (standard microorganisms and methicillin-resistant Staphylococcus aureus isolates (MRSA)) and mutagenic/antimutagenic effects (by Ames assay) were tested for biological profile. For chemical profile, total and individual phenolic components were detected for each extract. RESULTS: Generally, T-Me reflected the strongest biological effects with the highest level of phenolics (115. 15 mgGAEs/g extract). Also, twig extracts had more potent biological effects as compared to flower extracts. Eight-teen phenolics were identified in the extracts. (-)- epicatechin was the major constituent in all extracts and is mainly responsible for biological activities observed. Its amount present in F-W and T-W were 9.27 and 32.89mg/g extract, respectively. Also, molecular docking was used to understand enzyme-epicatechin interactions. CONCLUSION: From these results, this plant has a great potential as a health promoter for developing novel functional food ingredients and pharmaceutical preparations.
BACKGROUND: The Cotoneaster species are widely used as traditional purposes in different countries including Turkey. PURPOSE: The study was performed to evaluate the biological and chemical profile of two extracts (methanol (T-Me; F-Me) and water (T-W; F-W)) from two parts (twigs and fruits) of Cotoneaster integerrimus. MATERIALS AND METHODS: Antioxidant (free radical scavenging (DPPH), reducing power (CUPRAC and FRAP), phosphomolybdenum and metal chelating), enzyme inhibitory (cholinesterase, tyrosinase, α-amylase and α-glucosidase), antimicrobial (standard microorganisms and methicillin-resistant Staphylococcus aureus isolates (MRSA)) and mutagenic/antimutagenic effects (by Ames assay) were tested for biological profile. For chemical profile, total and individual phenolic components were detected for each extract. RESULTS: Generally, T-Me reflected the strongest biological effects with the highest level of phenolics (115. 15 mgGAEs/g extract). Also, twig extracts had more potent biological effects as compared to flower extracts. Eight-teen phenolics were identified in the extracts. (-)- epicatechin was the major constituent in all extracts and is mainly responsible for biological activities observed. Its amount present in F-W and T-W were 9.27 and 32.89mg/g extract, respectively. Also, molecular docking was used to understand enzyme-epicatechin interactions. CONCLUSION: From these results, this plant has a great potential as a health promoter for developing novel functional food ingredients and pharmaceutical preparations.
Authors: Alberto Cornejo; Francisco Salgado; Julio Caballero; Reinaldo Vargas; Mario Simirgiotis; Carlos Areche Journal: Int J Mol Sci Date: 2016-08-18 Impact factor: 5.923