Duried alwazeer | Igdir University (original) (raw)

Papers by Duried alwazeer

Frontiers in Sustainable Food Systems

The impact of hydrogen infusion into solvents on the extraction of phytochemicals was evaluated. ... more The impact of hydrogen infusion into solvents on the extraction of phytochemicals was evaluated. Pure (water, ethanol, methanol) and hydrogen-rich solvents at temperatures (25°C and 35°C) were used for extracting phenolics, flavonoids, anthocyanins, and antioxidants from lemon peel. Incorporating hydrogen into all solvents increased the extraction of all phytochemicals. The hydrogen incorporation into solvents led to the highest increase in phenolics and flavonoid contents shown for hydrogen-rich methanol (HRM) followed by hydrogen-rich ethanol (HRE) at both 25°C and 35°C. The highest antioxidant extraction was shown for HRM. The hydrogen incorporation showed the highest phytochemical extraction in methanol and at 35°C. The increase in temperature increased the extraction efficiency, but less efficiently than the hydrogen incorporation. The HPLC phenolic profile confirmed the positive effect of both temperature and hydrogen incorporation on the extraction of flavonoids and non-flavo...

Current Microbiology, Aug 13, 2018

The intracellular pH (pH in) of Leuconostoc mesenteroides subsp. mesenteroides 19D was evaluated ... more The intracellular pH (pH in) of Leuconostoc mesenteroides subsp. mesenteroides 19D was evaluated by two different methods, fluorescent probe and ion-selective electrode. Two fluorescent probes 5 (and-6)-carboxyfluorescein diacetate succinimidyl ester (cFDASE) and 5 (and-6)-carboxy-2′,7′-dichlorofluorescein diacetate succinimidyl ester (cDCFDASE) were tested to evaluate the intracellular pH (pH in) of living cells at a medium pH (pH ex) ranged from 5.0 to 6.5. Salicylic acid was used as a probe for the ion-selective electrode method. Cells kept 60-80% of cFDASE probe at all pH ex values against 5-10% of cDCFDASE probe at pH ex ≤ 6.0. The pH in values measured by the ion-selective electrode were higher by 0.1-0.6 pH units at pH ex ranged from 5.0 to 6.5 than those determinated by fluorescent probe method. The possibility to study the intracellular pH at a wide external pH range using a single probe, and the simplicity of the material and experimental protocol may make the ion-selective electrode method most useful and easy to measure the intracellular pH of lactic acid bacteria compared with the other techniques like fluorescent probes.

Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi, Dec 1, 2019

Food processors generally apply different techniques to extend the shelf-life of food products ac... more Food processors generally apply different techniques to extend the shelf-life of food products according to the characteristics of the product. Modified Atmosphere Packaging (MAP) uses different gases in specific combinations to replace the air surrounding the product, which leads to minimize the undesirable oxidation reactions and microbial spoilage growth permitting extending the shelf-life of the product. The property of the Reducing Atmosphere Packaging (RAP) technique is the use of reducing gas like hydrogen besides other gases such as nitrogen, argon and carbon dioxide. The advantage of the presence of a reducing gas in the gaseous combination is the prevention of the oxidation reactions such as the formation of free radicals, the deterioration of vitamins such as C, E and beta-carotene, the deterioration of pigments such as carotenoids and the formation of off-flavors like the rancidity products. The prevention of the latter undesirable reactions aides to protect the freshness notes of the food products by preserving its natural color, taste and aroma, as well as the protection of the nutritional quality. The literature contains a few researches concerning the application of RAP on different food products. This is the first review reporting the potential application of hydrogen in modified atmosphere technology for extending the shelf-life of food products.

Journal of Food Science and Technology, Jun 24, 2022

Zenodo (CERN European Organization for Nuclear Research), Jul 13, 2023

Hydrogen therapy, which originated in Japan, is gaining popularity and expanding its reach to oth... more Hydrogen therapy, which originated in Japan, is gaining popularity and expanding its reach to other Asian countries as well as the USA. The rise in the number of centenarians in Japan has been linked to the elevated levels of hydrogen gas detected in their breath. Subsequently, extensive research, consisting of thousands of studies focusing on numerous diseases, has been conducted. Owing to its non-toxic nature and numerous advantageous characteristics, molecular hydrogen has been proposed for applications in areas such as food, agriculture, pharmaceuticals, and medicine. This review highlights recent advancements in hydrogen research using rat models.

Elsevier eBooks, 2019

Abstract Despite the numerous processes proposed as alternatives to heat pasteurization, thermall... more Abstract Despite the numerous processes proposed as alternatives to heat pasteurization, thermally treated juices produced by full or flash pasteurization are still the most widely marketed product. It is well known that the flavor of fruit juices is influenced by heat treatment used for microbial stabilization; as an example, volatile compounds, such as alpha-terpineol and the terpinen-4-ol synthesized during heat treatments are responsible for the “oxidized” and “cooked” flavors of the orange juice. In addition, between the setting out of bottle and the consumption of the fruit juice, it can occur several days even several weeks. Food is subjected to the laws of aging and chemical additives are often used to stabilize fruit drinks, and in such an objective, gases may offer new perspectives; in this chapter the use of oxygen, nitrogen, carbon dioxide, and hydrogen are investigated.

Environmental Monitoring and Assessment, Oct 24, 2019

The presence of several trace elements, heavy metals, and antimony in polyethylene terephthalate–... more The presence of several trace elements, heavy metals, and antimony in polyethylene terephthalate–bottled local raw cow milk samples of Iğdır region in Turkey was investigated. The milk samples were analyzed by inductively coupled plasma mass spectrometry after microwave-assisted digestion. Milk samples were categorized into three groups according to the element level intensity in the sample. While 70% of samples showed 2.5 times the maximum Turkish and European permissible level of lead, the lowest lead-contaminated sample exhibited 1.25 times this level. All the examined samples exceeded the maximum permissible limit administrated for arsenic and 35% of samples exhibited 5 times this limit. Results showed 40% of samples contain an antimony level higher than the Turkish maximum allowable concentration. The high antimony content of raw milk samples may be related to the release of antimony from the PET (polyethylene terephthalate) bottles. This study showed high contamination levels of the most toxic trace elements, i.e., lead and arsenic in milk and possible antimony contamination from PET bottles which may cause many health hazards for the consumers.

Food Research International, Jun 1, 2020

This is a PDF file of an article that has undergone enhancements after acceptance, such as the ad... more This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

Sustainable Chemistry and Pharmacy, Jun 1, 2023

Acta Scientiarum Polonorum-hortorum Cultus, Feb 24, 2023

Apricot (Prunus armeniaca L.) is a stone fruit and member of the Rosaceae family that includes ab... more Apricot (Prunus armeniaca L.) is a stone fruit and member of the Rosaceae family that includes about 100 genus and 2380-3100 species [Moustafa and Cross 2019]. The most cultivated species of apricots required cold winter and high temperatures in spring and initial of summer [Khursheed et al. 2020]. Today, the largest apricot production of the world is the Mediterranean region and the Central Asian countries such as Turkey, France, Spain, Algeria, Italy, Uzbekistan, and Iran [Çuhacı et al. 2021]. Turkey is one of the major producers of both the fresh and the dried apricot [Asma and Ozturk 2005]. Turkey is the leading apricot producing country with 833.398 tons in 2020 [FAO 2022] Although apricots are cultivated throughout Turkey, the best climate conditions for cultivation are in the central Eastern Anatolia region. Especially, Malatya, Aras valley (Iğdır-Kağızman), Erzincan and Mut provinces produce about 70-75% of Turkey's total apricot production [Ercisli 2009]. Iğdır is placed on Eastern Turkey and is a microcli

Sustainability, Jan 11, 2023

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Uluslararası Tarım ve Yaban Hayatı Bilimleri Dergisi, Dec 15, 2020

The objective of this study was to investigate the effect of different ethanol ratios in extracti... more The objective of this study was to investigate the effect of different ethanol ratios in extraction solvent as well as the antioxidant properties of five plants. Thyme, mint, uckun, grape seeds and green tea waste fiber was analyzed to determine total phenolic content (TPC) and antioxidant activity by ABTS and DPPH radical scavenging activity assays. Individual phenolic components were analyzed with reverse phase high performance liquid chromatography (HPLC). TPC varied significantly from 2.00±0.27 to 172.68±0.19 mg GAE g-1 dw depending on the plant type and ethanol ratio of the solvent. The effect of ethanol ratio also varied among different plants. HPLC analysis was performed for the extracts showing highest antioxidant activity, and green tea waste fiber (699.89 mg 100 g-1 dw) had the highest concentration of phenolic compounds overall, while mint (173.67 mg 100 g-1 dw) had the lowest amount. Correlations between TPC and antioxidant activity was significant which is comparable to the previous report.

Notulae Botanicae Horti Agrobotanici Cluj-napoca, Dec 21, 2018

Antibacterial and antioxidant activities form an essential component of the bioactive properties ... more Antibacterial and antioxidant activities form an essential component of the bioactive properties of plant products. The antibacterial and the antioxidant properties of three types of aqueous extracts of four herbs and spices were evaluated. While the total phenolic content, DPPH radical scavenging activity and oxidoreduction potential methods were used for the antioxidant properties determination, the inhibition diameters of extracts toward the growth of Staphylococcus warneri, Bacillus cereus, Enterobacter cloacae and Proteus vulgaris were evaluated. Although the phenolic content did not correlate with the antibacterial activity of plant extracts, it linearly correlated (R 2 = 0.827) with DPPH scavenging activity of the studied plants following the order: sumac > ginger > rosemary > cinnamon. The oxidoreduction potential values linearly correlated with both the phenolic content (R 2 ≈ 0.88) and DPPH scavenging activity values (R 2 ≈ 0.96). The oxidoreduction potential could be proposed as a useful companion tool combined with other techniques when determining the antioxidant activity of plant extracts and food products is considered.

Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi, Dec 30, 2018

Bu çalışmada elma ve kayısı meyveleri; dondurarak (liyofilizasyon), vakumda, fırında ve İndirgen ... more Bu çalışmada elma ve kayısı meyveleri; dondurarak (liyofilizasyon), vakumda, fırında ve İndirgen Atmosferik Kurutma [hava, %100 azot ve indirgen gaz içeren bir gaz karışımı (RAD (Mix); %1-4 H 2 , %5 CO 2 , %91-94 N 2) ile 3 farklı kurutma atmosferinde] olmak üzere farklı şekillerde kurutulmuştur. Kurutulan ürünlerin renk değerleri (L*, a*, b*) ölçülmüş ve karşılaştırılmış, sonuç olarak elmada tazeye en yakın renk değerlerine, ilk sırada liyofilizasyon, ikinci sırada ise RAD (Mix) ile ulaşılmış ve esmerleşmenin en fazla fırın ile kurutulan elmalarda gerçekleştiği tespit edilmiştir. Kayısı örneklerinde ise en uygun kurutma yönteminin RAD (Mix) olduğu saptanmıştır. Liyofilizasyon sonrası, L* değerindeki artış ve b* değerindeki düşüş sebebiyle kuru kayısıda arzu edilen altın sarı renk elde edilememiştir. En fazla esmerleşme ve renk değişimi vakum kurutmada kurutulan kayısılarda tespit edilmiştir.

Reproductive Biomedicine Online, Aug 1, 2023

Journal of Applied Research on Medicinal and Aromatic Plants

Journal of Food Measurement and Characterization

ABSTRACT Flower buds of capers were processed by pickling, salting, freezing and/or blanching, an... more ABSTRACT Flower buds of capers were processed by pickling, salting, freezing and/or blanching, and canning. The results showed that at the end of storage (8 months), samples pickled in brines (5, 8%) and then stored in the brine 15% or brine 10% with 1% acetic acid have preserved high amount of phenols measured by Folin-Ciocalteu test (12.12-13.9 mg/g lyophilized) and had high antioxidant activity measured by DPPH tests (EC50= 5658.30-6366.50 μg/ml). On the contrast, samples like the one preserved in high brine (23%) and the salted one (mixed with dry salt) have had low amounts of phenols (4.47,6.62 mg/g lyophilized) and low values of antioxidant activity measured by DPPH test (EC50= 9846.22, 14493 μg/ml). While a good content of flavonoids was for samples like the freezed with blanching (7.22), canned one (5.54), and the one preserved in brine (16%) (4.61mg/g lyophilized).

Brazilian Archives of Biology and Technology, 2023

This study aimed to evaluate the use of an oxy-hydrogen generator for preparing hydrogen-rich wat... more This study aimed to evaluate the use of an oxy-hydrogen generator for preparing hydrogen-rich water (HRW) and studying its effects on the L. garvieae-affected zebrafish. 0, 10, 20, and 100% HRW were prepared to determine the effects of HRW on the mortality rate and gene expression levels of L. garvieae infected-zebrafish. After 48 hours of bacterial injection, the mortality rate of fish was 0, 0, 0, 66, 80, and 100% for the non-infected and non-HRW (G1), infected and 100% HRW (G5), non-infected and 100% HRW (G6), infected and 20% HRW (G4), infected and 10% HRW (G3), and infected without HRW (G2) groups. After 54 hours, there was a non-significant change in immunity-related gene expression levels (IL-1β and IL-6) between non-infected 100% HRW (G6) and non-infected non-HRW control (G1) groups. Gene expression levels were significantly upregulated for IL-1β (14, 13, and 9 times), IL-6 (48, 48, and 22 times), and SOD (9 times for each) genes in G2, G3, and G4 groups, respectively, but not for G5 comparing with control group G1. IL-1β and IL-6 gene expression levels decreased with the increase of hydrogen levels in the water. These results show that HRW could decrease (G3 and G4) and prevent (G5) the mortality of L. garvieae infectedzebrafish. This demonstrates the importance of the application of HRW for the treatment of bacterial infectious diseases of fish using a non-toxic compound as a green method without any residual effects on fish or water. HIGHLIGHTS • Hydrogen-rich water can be applied as non-toxic compound for the treatment of bacterial infectious diseases of fish without any residual effects on fish or water. • IL-1 and IL-6 gene expression levels decreased with the increase of hydrogen levels in the water • HRW could reduce and prevent the death of zebrafish infected with L. garvieae (G5).