Abstract
Grape berries are a good source of nutrients and nutraceuticals and have many benefits for human health. Growing interest in the export potential and consumption of a new grape (cv. Karaerik), cultivated as a table grape in Turkey, encouraged us to profile its major nutrient contents from six different locations. Due to its popularity, the nutritional value of this grape berry needs to be investigated to ascertain its potential economic and health benefits. The most abundant sugars in the grape berry were fructose and glucose (peel/whole fruit; averages 236.57 and 127.87, and 183.36 and 108.60 (g kg-1 fresh weight), respectively), while the major organic acids were tartaric and malic acids (7.17 and 2.81, and 2.61 and 1.76(g kg-1 fresh weight), respectively). Linoleic acid (peel/whole fruit/seed; 37.14, 33.12 and 57.83%, respectively) was the predominant fatty acid, while potassium (peel/whole fruit/seed; 9331.5, 10226.33 and 5354 mg/g dry weight, respectively) was the predominant mineral, followed by phosphorus (1592.8, 2672 and 3072.67) in the berry. Our results demonstrate that the nutrient components and physicochemical parameters varied significantly among the sampling locations. The grape berry contains considerable quantities of potentially beneficial healthy nutrients worthy of further evaluation.
Highlights
The consumption of fruits and vegetables is a key component of a healthy diet in humans and for protection against various degenerative diseases, such as cancer, cardiovascular diseases, diabetes, pulmonary disorders, and Alzheimer’s (Ferretti, Turco, & Bacchetti, 2014; Hyson, 2011) by reducing the risk of their development (Slavin& Lloyd, 2012)
The results show that the grape berries sampled from Caglayan differed significantly (P < 0.01 or 0.05) from those from the other five locations, exhibiting lower physicochemical parameter values and concentrations of sugars and acids
The titratable acidity (TA) in the present grape berry was in good agreement with ranges reported for 33 grape berries in various studies (Ejsmentewicz et al, 2015; Ochmian et al, 2013; Pavlousek & Kumsta, 2011; Rolle et al, 2013; Yamamoto et al, 2015)
Summary
The consumption of fruits and vegetables is a key component of a healthy diet in humans and for protection against various degenerative diseases, such as cancer, cardiovascular diseases, diabetes, pulmonary disorders, and Alzheimer’s (Ferretti, Turco, & Bacchetti, 2014; Hyson, 2011) by reducing the risk of their development (Slavin& Lloyd, 2012). Nutrient composition of ‘Karaerik’ grape berry 99 ing the contribution of the consumption of these foods to protection against the diseases cited above (Kurt et al, 2017). The taste lies on a fine point between mildly sour and sweet, with a specific aroma not found in other grapes (Akpınar & Yigit, 2011; Guner & Aslan, 2012) It is generally regarded as a table grape. The aim of the present study was to characterize and compare various physicochemical parameters and nutritional composition changes (soluble sugars, organic acids, fatty acids, and minerals) in berries of the new grape (Karaerik) that is widely grown in the region
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