Segregation of blackberry cultivars based on the fruit physico-chemical attributes

Mi̇losevi̇c Tomo; Mrati̇ni̇c

doi:10.1501/tarimbil_0000001197

Abstract

Blackberries are considered a rich source of phyitochemicals with high nutraceutical value and beneficial health effect. The objective of this work is to determine the berry size and compositional status of blackberry cultivars grown under Serbian conditions. For this purpose, fresh berries of seven blackberry cultivars (‘Black Satin’, ‘Dirksen Thornless’, ‘Chester Thornless’, ‘Thornfree’, ‘ Čačanska Bestrna’, ‘Loch Ness’ and ‘Navaho’ ) were used during two seasons. According to the results, the highest berry size was found in ‘ Čačanska Bestrna’ and ‘Loch Ness’, dry matter (DM) and titratable acidity (TA) in ‘Chester Thornless’ and pH value in ‘Dirksen Thornless’ . The highest content of soluble solids (SSC), sugars content, SSC/TA rate and total sugars (TS)/TA rate was observed in ‘Navaho’, and mineral mater (MM) in ‘Loch Ness’ and ‘Chester Thornless’. The highest total phenolic content (TPH) and total antioxidant capacity (TAC) were found in ‘Black Satin’, total flavonoid content (TFC) in Thornfree, and ascorbic acid (AA) in ‘Loch Ness’. Based on the present results, the strong relationships between some phytochemicals, especialy between bioactive compunds, were observed. On the basis principal component analysis (PCA), we segregated cultivars with better qualitty attributes, which were observed in ‘Navaho’ and ‘Loch Ness’, somewhat in ‘Chester Thornless’ and ‘Black Satin’.

Highlights

In recent years, increasing attention has been paid to consumers’ health, nutritional aspects of horticultural products
Blackberries are rich in phenolic compounds such as anthocyanins, flavonols, ellagitannins, gallotannins, proanthocyanidins and phenolic acids
These phenolic compounds from berries provide many biological functions such as antioxidant, anticancer, anti-neurodegenerative, and antiinflammatory activities

Summary

Introduction

In recent years, increasing attention has been paid to consumers’ health, nutritional aspects (vitamin content, mineral elements, antioxidants etc.) of horticultural products. As one of the most popular berry crops, blackberry (Rubus spp.) are consumed as fresh, frozen, or commercially processed into a variety of foods and other products such as jam, wine, tea, ink, dyes, fruit leather, and medicine (Türemiş et al 2003). It has been a favorite fruit, due to its pleasant flavor and to its high nutritive value. Blackberries are rich in phenolic compounds such as anthocyanins, flavonols, ellagitannins, gallotannins, proanthocyanidins and phenolic acids (Seeram et al2006) These phenolic compounds from berries provide many biological functions such as antioxidant, anticancer, anti-neurodegenerative, and antiinflammatory activities

Objectives

Methods

Results

Conclusion