Effect of pre-harvest oxalic acid treatment on shelf-life of apricot cv. ‘Roxana’

Çalışmada, hasat öncesinde oksalik asit (OA) uygulamasının raf ömrü süresince ‘Roxana’ kayısı çeşidinin meyve kalitesi üzerine olan etkisi araştırılmıştır. Bu amaçla, tahmini hasat tarihinden 7 gün önce farklı dozlarda (0, 1, 2, 4 ve 8 mM) oksalik asit uygulanmıştır. Optimum hasat tarihinde (sert olum döneminde) derilen meyveler oda sıcaklığında (20±1°C) ve %50–60 nem koşullarında 8 gün süreyle raf ömründe tutulmuştur. Raf ömrü süresince 2 gün aralıklarla bazı fiziksel ve kimyasal analizler (ağırlık kaybı, metve eti sertliği, suda çözünebilir kuru madde miktarı, titre edilebilir asitlik, meyve rengi, etilen üretimi ve solunum hızı) yapılmıştır. Sonuç olarak, farklı dozlardaki OA uygulamaların hepsi bazı meyve kalite parametrelerindekontrolden daha iyi sonuçlar vermiştir. Özellikle OA’nin 1 mM’lık dozu meyve kalitesinin korunması bakımından en iyi uygulama olduğu saptanmıştır.The effect of pre-harvest oxalic acid treatment on the shelf-life of apricot cv. ‘Roxana’ was investigated. For this purpose, different doses (0, 1, 2, 4, and 8 mM) of oxalic acid (OA) solutions were applied 7 days before the optimal harvest stage. Fruit, harvested at optimum stage (firm-ripe stage), transported to the postharvest physiology laboratory, immediately. Harvested fruit was kept at room (20±1°C) temperature and 50–60% relative humidity conditions for 8 days for shelf-life evaluation. During the storage period, some physical and chemical analyses (weight loss, fruit firmness, soluble solids content, titratable acidity, fruit color, ethylene production, and respiration rate) were performed at 2-day intervals. As a result, all doses of OA gave better results than the control group in terms of some quality parameters. Especially, 1 mM dose of OA was the most effective treatment for maintaining fruit quality

Patient use of complementary and alternative medicine for psoriasis vulgaris and factors believed to trigger the disease: A multicenter cross-sectional study with 1621 patients

Introduction: Due to the chronic recurrent nature of psoriasis vulgaris (PV) and lack of definitive treatment for the disease, patients often resort to alternative treatments. Physicians seem to have low awareness of this issue. Objectives: To elicit the perceptions of 1,621 PV patients on complementary and alternative medicine (CAM) and examine factors reported to worsen PV. Methods: The patients sociodemographic characteristics, Psoriasis Area Severity Index (PASI), Dermatology Life Quality Index (DLQI), disease duration, and severity were recorded, and the patients CAM use was questioned in detail. The patients were also asked about factors that worsened PV and their experiences with a gluten-free diet. Results: Of the patients, 56.51% had used CAM. The mean age, illness duration, PASI scores and DLQI of those using CAM were significantly higher. CAM use was significantly higher in those with facial, genital involvement, and arthralgia/arthritis. The patients mostly referred to CAM when PV became severe (46.4%). Of the CAM users, 45.52% used herbal topicals. The physicians of 67.03% did not inquire whether they used CAM. Of the participants, 37.73% considered that stress worsened their disease. Gluten-free diet did not affect PV symptoms in 52.22%. Conclusions: Patients CAM use is often overlooked by dermatologists. Our results showed that more than half the patients used CAM and did not share this information with their physicians. Therefore, the awareness of physicians should be increased and patients should be asked about the use of CAM and directed to the appropriate medical treatment options by physicians

Effect of Oxalic Acid Treatments and Modified Atmosphere Packaging on the Quality Attributes of Rocket Leaves during Different Storage Temperatures

The effects of combinations of oxalic acid (OA) treatment with modified atmosphere packaging on the quality and biochemical content changes of rocket (Eruca sativa Mill. cv. Bengi) leaves were examined. After harvest, selected leaves were dipped into an aqueous solution containing different concentrations of oxalic acid (0-control, 0.25 mM, 0.5 mM, and 1 mM) for 1 min. Treated samples were dried and placed in modified atmosphere packages. Treated rockets were stored at two different temperatures (0 °C and 10 °C) and 90 ± 5% relative humidity conditions for 10 days. Leaves were analyzed at 2-day intervals for some quality and biochemical parameters during storage. OA-treated leaves were greener than those of the control group. At the end of the storage, high doses (1 mM) of OA applications successfully suppressed the respiration rate (0 °C: 63.12 mL CO2 kg−1 h−1, 10 °C: 78.09 mL CO2 kg−1 h−1) and retarded the weight loss (0 °C: 0.14%, 10 °C: 0.49%) and color discoloration (0 °C: ∆E 7.23, 10 °C: ∆E 8.34) of rocket leaves. In addition, OA treatments decreased the vitamin C losses and chlorophyll degradation. In conclusion, rocket leaves could be stored at 0 °C for 8–9 days with 1 mM OA treatment and 6 days with the control treatment and at 10 °C for 6–7 days with 1 mM OA treatment and 4 days with the control (C) treatment with a minimum quality loss under MAP conditions

Eğirdir Koşullarında Yetiştirilen Pink Lady Elma Çeşidinde Farklı Atmosfer Bileşimlerinin Depolama Boyunca Meyve Kalitesine Etkisi

The effects of different gas compositions on the fruit quality of Pink Lady apple grown in Eğirdir (Isparta) during controlled atmosphere (CA) storage were investigated. Fruits harvested at optimum stage were stored in three different CA gas combinations (2% O2-2% CO2; 1.5% O2-1% CO2; 3% O2-1% CO2) at 0°C and 8590% relative humidity for 8 months. Weight loss, fruit firmness, fruit skin color, soluble solid content, titratable acidity, respiration rate, ethylene production and physiological disorders and fungal diseases of fruits were determined at the 0th, 4th and 8th months of storage. The results showed that Pink Lady apple variety stored in 1.5% O2-1% CO2 conditions gave the best results in terms of some quality parameters compared to other gas combinations during storag

Quality of raisins under different packaging and storage conditions

<p>We determined the effect of different storage systems and packaging on the quality of ‘Sultana Seedless’ raisins. The fruit were packed in plastic boxes and kept under controlled atmosphere (1% O₂ and 3% CO₂) at 0°C and 75–85% RH for 12 months (CA), packed in vacuum bags and kept under normal atmosphere (21% O₂–0.03% CO₂) (NA) and packed in thin plastic bags + carton boxes and kept under ambient condition (semi-refrigeration), at 0°C and 90% ± 5 RH for 12 months (AC). Fruit kept under CA or NA had acceptable fruit quality in terms of general appearance and taste for 10 months, whereas fruit quality was unacceptable at that time under AC. Fruit under NA had less weight loss than fruit under the other conditions. Differences in skin colour were relatively small, apart from the h° values. Concentrations of ochratoxin A were generally higher with AC. External appearance and taste were better with CA and NA. As a result, raisins can be stored for 10 months with good quality in vacuum package in NA (0°C and 90% ± 5 RH) and CA (1% O₂–3% CO₂) at 0°C and 75–85% RH.</p

Hemoglobin A(1C) can differentiate subjects with GCK mutations among patients suspected to have MODY.

Objectives The aim of this study is to determine the clinical and molecular characteristics enabling differential diagnosis in a group of Turkish children clinically diagnosed with MODY and identify the cut-off value of HbA(1c), which can distinguish patients with GCK variants from young-onset type 1 and type 2 diabetes. Methods The study included 49 patients from 48 unrelated families who were admitted between 2018 and 2020 with a clinical diagnosis of MODY. Clinical and laboratory characteristics of the patients at the time of the diagnosis were obtained from hospital records. Variant analysis of ten MODY genes was performed using targeted next-generation sequencing (NGS) panel and the variants were classified according to American Collage of Medical Genetics and Genomics (ACMG) Standards and Guidelines recommendations. Results A total of 14 (28%) pathogenic/likely pathogenic variants were detected among 49 patients. 11 variants in GCK and 3 variants in HNF1A genes were found. We identified four novel variants in GCK gene. Using ROC analysis, we found that best cut-off value of HbA(1c) at the time of diagnosis for predicting the subjects with a GCK variant among patients suspected to have MODY was 6.95% (sensitivity 90%, specificity 86%, AUC 0.89 [95% CI: 0.783-1]). Most of the cases without GCK variant (33/38 [86%]) had an HbA(1c) value above this cutoff value. We found that among participants suspected of having MODY, family history, HbA(1c) at the time of diagnosis, and not using insulin therapy were the most differentiating variables of patients with GCK variants. Conclusions Family history, HbA(1c) at the time of diagnosis, and not receiving insulin therapy were found to be the most distinguishing variables of patients with GCK variants among subjects suspected to have MODY