Study on quality parameters of grapes (Vitis vinifera) and raisins affected by grape type

Abstract

Grape (Vitis vinifera L.) is one of the most important fruit crops of the country well known for health benefits. Varietal variations are recorded in quality of grapes and processed products. In present study 10 grape varieties (white seedless and colour seeded) were evaluated for properties of grapes and raisins. Bigger bunches were recorded in H-27 and closely followed by Manjari Naveen while maximum weight of 10 berries was observed in E8-5. Among these higher TSS was recorded in Manjari Kishmish (22.40°B) while Manjari Naveen variety was noted with minimum TSS (18.13°B). Raisin recovery was ranged from 22.88% in H-27 to 26.40% in Manjari Kishmish. Weight of 50 raisins was maximum in Carolina Blackrose (50.38 g) while Thompson Seedless was registered with minimum weight of 50 raisins. Raisins obtained from Kishmish Moldoski contained maximum reducing sugar (55.43 g/100 g) followed by Black Maladein (51.04 g/100g) while minimum reducing content in was recorded in raisins from Gulabi (31.93 g/100 g). Raisins from Manjari Kishmish contained higher protein (43.94 mg/g) and same raisins were found with maximum carbohydrate content (776.43 mg/g). Raisins obtained from grapes of H17 contained higher values of phenols and anthocyanins. Sensory studies showed that raisins obtained from Thompson Seedless scored maximum for overall acceptability while Carolina Blackrose was favored for color. Raisins of Manjari Naveen were found flavor and appreciated.

Performance of red wine varieties under Pune region of Maharashtra

“…to more number of canes or immaturity of canes in different varieties. Similar line of work in grapes was reported by Havinal (2007) [10] and Somkuwar et al, (2020) [35] . [37] .…”

Rootstock Influences Yield, Berry Composition and Wine Quality in Sauvignon Blanc Grown under Semi-Arid Condition

“…The data recorded on yield attributing parameters are presented in the [20] and [21], yield is mainly correlated to the number of grape clusters, but also the traits of grape clusters and berries, as well as the number of grape berries per cluster [22] reported that Red Globe vines grafted on Dogridge followed by Salt Creek rootstock recorded higher yield per vine. [23] found that both the inherent vigour of the scion that conferred by the rootstock were contributing factors to yield performance.…”

Evaluation of Grape Varieties for Raisin Purposes under Tropical Conditions of India

“…The higher temperature in the tropics may lead to an increase in sugar content and a decrease in acids. Somkuwar et al (2020) revealed that the grape types affect raisin quality as every grape type has its features like berry size, Titrable Acidity (TA), total soluble solids, etc. and it reflects in the quality of the dried grapes.…”

“…As the organoleptic score is related to the quality of grapes and drying conditions so variability is recorded. Somkuwar et al, (2020) also recorded variability in the organoleptic quality of raisins produced from different varieties.…”

“…Traditional grape varieties mainly Thompson Seedless and its clonal selections such as Tas-A-Gnesh, Sonaka, Super Sonaka, etc., are widely adopted by farmers for purpose of raisin making. However, a recent study on the evaluation of grape varieties for drying purposes was conducted by Somkuwar et al (2020). Variability was recorded in bunch, berry and raisin parameters among the varieties.…”