A nutritional evaluation of the berry of a new grape: 'Karaerik' (Vitis vinifera L.)

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.

Vitis vinifera Turkish grape cultivar Karaerik. Part I: anthocyanin composition, and identification of a newly found anthocyanin†

“…Cimin grape), which is black in color and has large‐grained berries, is a new V. vinifera cultivar native to Turkey . It has a high market value, and is therefore widely cultivated as a table grape in the district of Üzümlü and its surrounding areas/towns (Pişkidağ, Göller, Karakaya, Bayırbağ, Çadırtepe, and Çağlayan) of the city of Erzincan for years . According to a recent report, the annual production of the grape in the regions is 3764 t (4.95 t/ha)…”

“…With more than 80 species and a large number of varieties, grapes ( Vitis L.) are one of the most important commercial and consumed fruit crops in the world . During the 2014–2015 production period, 21.7 million tons of grapes were reported to be produced worldwide, and Turkey is one of the world's three largest producers, at 9 million tons (9.2%) …”

“…V. berlandieri , V. riparia , V. rupestris , etc. ), (ii) the East‐Asia group consisting of approximately 55 species and currently considered to be of limited importance to viticulture, and (iii) the Euroasia group, made up of one single species, V. vinifera , accounting for most of the world's Vitis varieties (∼6000) …”

“…Little has previously been published regarding the phenological or ampelographic characteristics and nutritional value of the grape . The taste of berry of the common grapevine cultivar lies on a fine point between mildly sour and sweet with a specific aroma not found in other V. vinifera grapes.…”

“…This grape variety is mainly used as a table grape, but has also traditionally been employed in the form of syrup vinegar, molasses and dried pulp. There has also been recent growing interest in exporting the grape due to the favorable characteristics described earlier …”