Physical, Bioactive and Textural Properties of Oleaster (Elaeagnus angustifolia L.) Fruit from Different Locations in Turkey

Abstract

The objective of this study was to evaluate the physical, bioactive and textural properties of oleaster fruits grown in different locations of Turkey. The oleaster fruits were obtained from Aksaray, Niğde and İzmir cities and their crumb and crust parts were analyzed individually and freshly. In terms of color, the crust and crumb of oleaster fruits from İzmir had the darkest color with L* values of 46.81 ± 4.06 and 78.91 ± 4.97 among all tested fruits from different locations, respectively. Total of phenolic (TP), flavonoid (TF) and tannin (TT) content (C) and as well antioxidant activities (AA) of oleaster fruits were determined for the crust and crumb of oleaster fruits. The highest TPC (22.30±1.75 mg gallic acid equivalent/g DM), TFC (16.24±1.49 mg catechin equivalent/g DM) and AA (14.05±0.55 μmol trolox equivalent/g DM) by DPPH were found in the crust of Aksaray oleaster fruits. In addition, the crumb of Aksaray oleaster fruit had the highest TPC (16.44±1.67 mg gallic acid equivalent/g DM) among the crumbs of oleaster fruits from different locations. Furthermore, there was no significant difference among the texture of crust and crumb of oleaster fruits obtained from different locations. Results showed the growing location of oleaster fruits had a significant influence on the physical and bioactive properties of fruits. Also, this study indicated that oleaster fruits were rich in bioactive compounds; therefore, they could be incorporated into foods to design functional foods.

Bioactive components and nutritional properties of fiber‐rich cookies produced with different parts of oleaster (Elaeagnus angustifolia L.)

“…Hassanzadeh and Hassanpour 43 reported the mean antioxidant capacity of the peel and pump as 74.71% and 53.76%, respectively. According to Şimşek and Sufer, 44 the crust and crumb of oleaster fruit extracts had an antioxidant activity of 6.28–14.05 μmol TE g −1 DM and 5.01–11.56 μmol TE g −1 DM, respectively. Faramarz et al 45 found that the mean antioxidant capacities (IC 50 ) of the different genotypes of E. angustifolia L. for the DPPH method were 86.95, 91.79, and 32.68 mg Trolox mL −1 for peel, flesh, and seed, respectively.…”

“…In the present study, the EC 50 values for O'EN-F were higher than O'EX-F, with values of 1.64 and 5.38 mg DW for free, 3.08 and 4.17 mg DW for bound, and 4.72 and 9.53 mg DW for the total antioxidant capacity, respectively. The ABTS method is used to express the Trolox equivalent antioxidant 44 the crust and crumb of oleaster fruit extracts had an antioxidant activity of 6.28-14.05 μmol TE g −1 DM and 5.01-11.56 μmol TE g −1 DM, respectively. Faramarz et al 45 found that the mean antioxidant capacities (IC 50 ) of the different genotypes of E. angustifolia L. for the DPPH method were 86.95, 91.79, and 32.68 mg Trolox mL −1 for peel, flesh, and seed, respectively.…”

The impact of Senjed (Elaeagnus angustifolia L.) peel aqueous extract on qualitative properties of cold-pressed sesame oil

“…Hassanzadeh & Hassanpour (2018) reported that TFC of Elaeagnus angustifolia L. fruits peel and pulp methanolic extract in five different locations of East and West Azerbaijan provinces of Iran was in the range of 73.69 -226.5 and 94.27 -209.42 mg CAE/100 g FW, respectively. TFC of the methanolic extracts obtained from the crust and crumb of oleaster fruit varied between 5.99 ± 0.45 and 16.24 ± 1.49 mg CE/g DM, and 3.10 ± 0.01 and 6.54 ± 2.68 mg CE/g DM, respectively (Simsek & Sufer, 2021). The TFC in methanolic extracts of seed, flesh and peel of different genotype of oleaster fruit ranged from 4.7 to 17.6, 0.62 to 1.90, 0.64 to 1.13 (mM QE/mg extract), respectively (Faramarz et al, 2015).…”

“…TPC of oleaster fruits crust and crumb methanolic extracts grown in different locations of Turkey reported as in the range of 13.43-22.30 and 10.58-16.44 (mg GAE/g DM), respectively (Simsek & Sufer, 2021). TPC in seed, flesh and peel of different genotype of oleaster methanolic extracts ranged from 2.14 to 6.26 +-0.04, 0.14 to 1.54, and 0.12 to 2.59 (mM QE/mg extract), respectively (Faramarz et al, 2015).…”

“…The TFC in methanolic extracts of seed, flesh and peel of different genotype of oleaster fruit ranged from 4.7 to 17.6, 0.62 to 1.90, 0.64 to 1.13 (mM QE/mg extract), respectively (Faramarz et al, 2015). TFC of the extracts obtained from the crust and crumb of oleaster fruit varied between 5.99 to 16.24, and 3.10 and 6.54 (mg CE/g DM), respectively (Simsek & Sufer, 2021).…”