Browsing by Author "Bayyigit, Ismail"

Now showing 1 - 2 of 2

Citation - WoS: 1
Citation - Scopus: 1
The Effect of the Use of Vermicompost, Leonardite and Pomace on Some Soil Properties in Olive Cultivation
(Polish Society Magnesium Research, 2023) Bayyigit, Ismail; Sakar, Ebru; Eren, Abdullah
This research was carried out on a 12-year-old Gemlik variety olive grove, located in the historical Deyrulzafaran Monastery in the Artuklu district of Mardin province, Turkey, in the years 2020-2021. The effect of the use of vermicompost, leonardite and pomace, which are known as organic soil improvers, on some properties of soil under olive trees was investigated. The treatments were applied in February 2020 and repeated in February 2021 during the pre-flowering period of olives. At the end of the applications, the soil was analyzed in July 2022. For this purpose, samples were taken from two different depths, 0-30 and 30-60 cm, to represent the orchard soil under an olive grove. According to the research results, the pH of the soil samples taken from the olive orchard, measured in the saturation sludge, varied between 7.18 and 7.69, and the soil was determined to be of neutral and slightly alkaline reaction. The organic matter content of the garden soil, which was determined to have loamy texture (L) with a salt-free structure, proved to rank as follows: pomace > leonardite > vermicompost-treatedsoil, with the latter having the highest organic matter content compared to the control group. The %N content in the soils increased in the order: vermicompost > pomace > leonardite, the latter being the highest compared to the control group. In soil samples, the following elements were determined in the following quantities: phosphorus 3.01-6.12 kg da(-1), potassium 40.00-44.80 kg da(-1), calcium 2500-7370 mg kg(-1), magnesium 350-422 mg kg(-1), sodium 4.42-6.02 mg kg(-1), iron 8.19-15.20 mg kg(-1), copper 8.44-13.10 mg kg(-1) and manganese 26.30-38.70 mg kg(-1). It was determined that the phosphorus content of the soils was very low in soil samples taken from 30-60 cm depth, and moderate in soil samples taken from 0-30 cm depth. The potassium content of the soils was determined to be low. All the soil samples were determined to contain excess amounts of calcium. Finally, all the garden soil samples were found to contain adequate amounts of Mg, Na, Fe, Cu and Mn.
Citation - WoS: 1
Citation - Scopus: 1
Fruit Biochemical, Bioactive and Antioxidant Characteristics of Prunus Nepalensis
(Springer, 2025) Rymbai, Heiplanmi; Ercisli, Sezai; Sulusoglu Durul, Melekber; Kilicgun, Hasan; Bayyigit, Ismail; Colak, Aysen Melda
Prunus nepalensis is an important wild edible fruit tree of the eastern Himalayas, India. The fruit is known as a rich source of bioactive ingredients, pigmentation, and a distinctive organoleptic feature; however, the information available is scattered and focused mainly on the content of compounds in an isolated manner. The bioactive substances and pigmentations of P. nepalensis, as well as their potential applications were therefore thoroughly explored. All the data and literature were collected and analyzed. Sohiong fruits, had a unique blend of high titratable acidity, pH, citric acids, ascorbic acid, and total soluble solids (TSS). The proximate analysis revealed a high total carbohydrate, reducing sugar, total sugar, glucose, fructose, sucrose, crude oil, crude fiber, and ash content of fruits. A considerable amount of macro and micro mineral and nutritional content, including N, P, K, Ca, Mg, Zn, S, Na, and Fe, was recorded. The pulp and peel pigmentation of fruits was mainly due to the accumulation of anthocyanin (293-341 mg/100 g), including carotenoids, beta-carotene, flavonoids, and flavanol. A high content of ferric reducing ability of plasma (FRAP), total tannin, reduced glutathione, and hydroxyl radical activity are evidence of high antioxidants. Advancement in the development of novel extraction technologies has also improved the recovery efficiency of anthocyanin from Sohiong fruits. Sohiong fruits had high levels of bioactive substances and pigments. These fruits can be potentially used in value addition, food processing, and pharmaceutical applications as dietary supplements and alternative sources of edible color.