Sunflower honey (SH) is bright yellow, fragrant, pollen‐flavoured, slightly herbaceous and has a unique taste. The present research aims to examine the enzyme inhibitory, antioxidant, anti‐inflammatory, antimicrobial and anti‐quorum sensing activities and phenolic compositions of 30 sunflower honeys (SHs) produced from several regions of Turkey with chemometric study. SAH from Samsun exhibited the best antioxidant activity in β‐carotene linoleic acid (IC50: 7.33±0.17 mg/mL) and CUPRAC (A0.50: 4.94±0.13 mg/mL) assays, anti‐urease activity (60.63±0.87 %) and anti‐inflammatory activity against COX‐1 (73.94±1.08 %) and COX‐2 (44.96±0.85 %). SHs exhibited mild antimicrobial activity against the test microorganisms while they showed high quorum sensing inhibition zones measured in the range of 42–52 mm against the CV026 strain. The phenolic composition was determined by high performance liquid chromatography with diode array detection (HPLC‐DAD) system and levulinic, gallic, p‐hydroxybenzoic, vanillic and p‐coumaric acids were identified in all studied SHs. The classification of SHs was performed the using PCA and HCA. This study revealed that phenolic compounds and biological properties are effective in classification of SHs according to their geographical origin. The results suggest that studied SHs could be valued as potential agents with versatile bioactivities in oxidative stress‐related disease, microbial infections, inflammation, melanoma, and peptic ulcer.
Today, the need for quality wool suitable for worsted fabric production in the world is mainly met by Australian merino wool. In Turkey, which has a significant sheep population, in addition to domestic breeds, approximately 10% of the total sheep population (around four million head) is composed of merino cross breeds. However, the fleece quality is far from meeting Australian merino wool standards. Therefore, the aim of this study is to ensure a merino herd with high‐quality wool in Turkey. For this aim, by carrying out field studies in the Thrace region of Turkey where Turkish Merino sheep are widely bred, sheep with fleece that can meet the demands of the worsted industry were determined. As a result of field studies in which thousands of sheep were examined, it was determined that 43 female and 10 male sheep had fleece that would meet these standards. Then the breeders of the sheep, which had quality fleece, were persuaded and these sheep were purchased, and “Turkey's wool‐oriented Turkish (Karacabey) Merino Herd” consisting of 30 sheep and three rams was formed in the farm of Tekirdağ Namık Kemal University. In the second part of this study, a 100% wool fabric produced by using Australian merino was taken as a reference and it was aimed to produce the same fabric from Turkish merino wool. For this aim, the wool‐oriented Turkish Merino herd, which was bred at the university farm for 1 year, was shorn in May 2022. Then, Turkish and Australian merino wools were first converted into worsted yarn and then into woven fabric. The results of mechanical (tensile strength, pilling, abrasion resistance, felting shrinkage, Hofmann dimensional change, bending stiffness) and dyeability (dye‐uptake, CIE L*a*b* and colour yield (K/S) values; washing, rubbing and light fastness values) properties of fabrics produced from Turkish and Australian merino wool is presented.
Laboratuvar şartlarında saksı denemesi şeklinde yürütülmüş olan bu çalışmada, biber (Capsicum annuum L.) bitkisine NaCl (100 mM) yanı sıra, organik bileşiklerden: askorbik asit (0.5 mM), salisilik asit (0.1 mM), nitrik oksit (Sodium nitropruzit; 100 µM), prolin (10 mM) ve inorganik bileşiklerden: silisyum (2 mM), kalsiyum (10 mM) ve potasyum (10 mM) yaprak yoluyla uygulanmıştır. Tuz stresi altındaki biber bitkisinde genel vejetatif gelişme durumu ile bu organik ve inorganik bileşiklerin biber bitkisinin lipit peroksidasyon düzeyleri ve antioksidatif savunma sistemi üzerine etkinlikleri araştırılmıştır. Denemede yapılan analizler sonucunda; yapraklarda membran geçirgenliği (% EC), prolin, klorofil ve karotenoid kapsamları, antioksidatif enzimlerden SOD, POX, CAT aktiviteleri tayini yapılmış, ayrıca bazı bitki gelişim parametreleri saptanmıştır. Aynı zamanda, yapraklarda bazı makro elementlerin (Na, Ca, K ve P ) içeriği belirlenmiştir. Araştırma sonunda elde edilen verilere göre; artan tuz stresi altında biber bitkisi yapraklarında elektriksel geçirgenlik, lipid peroksidasyonu, prolin içeriği ve antioksidatif enzim aktivitelerinde artış, bazı organik ve inorganik bileşiklerin tuzlu ortama ilavesiyle bu parametrelerde düşüş gözlenmiştir. Bunun yanı sıra tuzlulukla beraber azalma göstermiş olan yaprak makro element içeriği ve ayrıca bitki uzunluğu, gövde çapı, gövde ve kök yaş ve kuru ağırlığı ortama bazı organik ve inorganik bileşiklerin eklenmesiyle olumlu olarak değişim göstermiştir. Bu bileşikler arasında lipit peroksidasyonun regülasyonunda en iyi etkiyi AsA, enzimatik antioksidatif sistemin regülasyonunda NO ve yaprak kuru ağırlığında ise K göstermiştir. Kontrollü şartlarda ve tuz stresi altında yetiştirilen biber bitkisinde etkinlikleri karşılaştırılmış olan organik ve inorganik bileşiklerden antioksidatif sistemi destekleyerek, bitki metabolizmasını düzenleyici ve tuz stresini hafifletmede en fazla etkiye sahip olan bileşiklerin tuzlu şartlarda kullanılabileceği ön yargısına varılmıştır.Effects of some organic and inorganic compounds on antioxidative system in pepper (Capsicum annuum L.
Food spoilage pathogens threaten to human health. In this work was studied biological activity of plant known as the “kurtludiken” in Turkey and it is contributed to the literature. Cardopatium corymbosum L. from Mugla region were collected for antimicrobial and antioxidant activity studies. The antimicrobial activity studies were done by disc diffusion method. A total of 8 microorganisms were used at this study, one of them is yeast and the others are bacteria. The 2,2′-azinobis-(3 ethyl benzothiazoline-6-sulfonic acid) (ABTS•+) was used for non-enzymatic antioxidant activity experiments. There are few studies on the biological activities of Cardopatium corymbosum. The aim of this study is to determine the antimicrobial and antioxidant effects of Cardopatium corymbosum against food pathogens. The radical scavenging percentage of plant was found to be 13%. As a result, Cardopatium corymbosum have antimicrobial and antioxidant capacities.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.