Fruit Biochemical and Nutritional Properties of Some Asian and European Pears (Pyrus spp.) Grown under Tehran Environmental Conditions

Document Type : Original Research

Authors
Somayeh Kadkhodaei
Kazem Arzani
Department of Horticultural Science, College of Agriculture, Tarbiat Modares University, Tehran, Islamic Republic of Iran.
Abstract
Pear is one of the most important pome fruits in the world fruit market with a high nutritional value. This study was performed to determine the phenolic compounds and some chemical properties of the fruit flesh and peel of 12 Asian and European pears. Chlorogenic acid and rutin were found as the important phenolic compounds in the fruit peel, which were measured using HPLC. Results showed fruit Titratable Acidity (TA, 0.17-0.53%(, Total Soluble Solids (TSS, 13.33-17.33 °Brix), firmness (1.7-2.75, kg cm-2), and color parameters. The highest L* value was observed in KS7 (40.55), while the lowest was in KS12 (14.26) and KS13 (14.78). Additionally, the study assessed the nutrient and total phenol content of fruit samples. The `Shahmiveh’ cultivar displayed the highest total phenol content (638 mg 100 g-1 FW), while the KS7 cultivar had the lowest (420 mg 100 g-1 FW). Potassium was the most abundant nutrient (1.16 mg 100 g-1 DW), followed by nitrogen and calcium contents. As the total phenol increased, so did the amount of rutin. Principal Components Analysis (PCA) of all data showed that the European and Asian pears studied cultivars and genotypes were different in terms of most of the studied biochemical traits, and significant relationships were observed between some traits. Besides, the obtained results help in the selection of the best pear cultivars or genotypes in terms of the highest phenolic content and nutrients, both for fresh consumption and in the juice industry.
 

Keywords

Subjects

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Journal of Agricultural Science and Technology
Volume 27, Issue 6
November and December 2025
Pages 1409-1423