Technological Characteristics of Some Apple Cultivars

Karakasova, Ljubica; Stefanoski, A.; Rafajlovska, Vesna; Klopceska, J.

doi:10.17660/actahortic.2009.825.89

Cited by 9 publications

(4 citation statements)

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“…Apples are an excellent source of vitamins (mainly vit. C, 2.3-31.1 mg/100 g DM), minerals (=ash 0.34-1.23%), dietary fibre (≈2-3% and pectin <50% apple fibre), carbohydrates, sugars (fructose, glucose, and sucrose), organic acids (0.2-0.8%), pectin, and water [3][4][5][6][7][8]. In addition to their nutritional value, they are also a valuable source of biologically active compounds, especially phenolic compounds, making them extremely beneficial to health [9].…”

Section: Introductionmentioning

confidence: 99%

Physico-Chemical Analysis of the Fruits and Consumer Preferences of New Apple (Malus × domestica Borkh) Hybrids Bred in Poland

Szpadzik,

Molska-Kawulok,

Krupa

et al. 2023

Agriculture

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Apples are the most important species in Polish fruit production, and their fresh fruit and processing products occupy a very important place in the European and world food economies. A natural process on the apple market is the replacement of older cultivars with new ones. Consequently, breeding work is being carried out all over the world to obtain new, attractive apple cultivars. In this work, four new apple hybrids obtained in the Department of Pomology and Horticulture Economics at the University of Life Sciences in Warsaw (WULS—SGGW), i.e., two red-skinned hybrids (‘I’P’ and ‘TL’) and two green-skinned hybrids (‘GL’ and ‘LG’), were tested for their main physico-chemical characteristics after harvest and after storage, as well as for their consumer acceptability in a comparison with three popular cultivars in Poland (‘Šampion’, ‘Golden Delicious’, and ‘Ligol’). The hybrids evaluated were differentiated in terms of the tested features. It was found that the fruits of the ‘GL’ hybrid had the highest firmness—both after harvest and post storage; it was also one of the highest-rated overall impressions by consumers among the cultivars tested (only ‘Ligol’ apples had higher scores). The hybrid with low fruit quality and low health-promoting properties at this stage of the study was ‘TL’, whose overall impression was also rated lowest by consumers. The study also showed that the content of bioactive compounds and antioxidant activity of apples can be higher in green-skinned cultivars compared to red-skinned cultivars.

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Section: Introductionmentioning

confidence: 99%

Physico-Chemical Analysis of the Fruits and Consumer Preferences of New Apple (Malus × domestica Borkh) Hybrids Bred in Poland

Szpadzik,

Molska-Kawulok,

Krupa

et al. 2023

Agriculture

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“…The nutritional value of fruits is also crucial due to their nutritive ingredients. Apples are mostly made up of water (about 85%) and contain sugars (mainly fructose, followed by glucose and sucrose), organic acids (primarily malic acid), vitamins (with Vitamin C having the highest content at 4.6 mg), minerals (ash content of 0.20) [12], and dietary fibers (about 2-3%, with pectin accounting for less than 50% of apple fibers) [13].…”

Section: Introductionmentioning

confidence: 99%

Estimating Viscosity of Low Sugar Apple Marmalade Using Backpropagation Neural Network

Unluturk,

Sirin,

Unluturk

2023

Agriculture & Food

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In this paper, a backpropagation neural network (BPNN) model was developed for the prediction of viscosity values of apple marmalade using experimental data collected from several measurements. Stevioside or Sucralose sweetener was used instead of sugar (sucrose) in some of the formulations. In the BPNN architecture, the shear stress, and shear strain with mass concentrations of the Stevioside, Sucrolase, and Sucrose were utilized as input, whereas the viscosity value of apple marmalade was used as an output to be estimated. The Stochastic gradient descent algorithm (SGD) was used to minimize the loss of the BPNN based on the experimental data set. The Mean squared error (MSE), and the coefficient (𝑅 2 ) were employed to assess the performance of the BPNN. The number of hidden neurons was found to be 20 using the adaptive hidden neuron algorithm. With 20 hidden neurons, the least MSE and the highest R 2 value were attained. Furthermore, the predicted viscosity values were found to be within 1% of the experimental viscosity values. The developed BPNN model can, therefore, be effectively utilized to predict the viscosity of any fruit marmalade using the same input and output parameters in the data range where the new data is normalized with the experimental data used in this paper.

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“…Apples represent one of the most nutritional foods in a healthy diet, due to sugars (sorbitol, fructose, glucose, sucrose), organic acids (0.2-0.8%), vitamins (mainly vit. C, 2.3-31.1 mg/100 g DM) and water (>80%) contents [7][8][9]. The sweetness of the fruit is a big part of the consumers' choice, the good ratio of sugars and acids gives the consumer a pleasant taste [8,10,11].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Agrotechnological Tools on cv. Rubin Apples Quality

2021

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With the growing demand for quality food in the world, there is a new ambition to produce high-quality apples seeking reduced cultivation costs. The aim of this study was to evaluate the influence of agrotechnological tools on the quality of cv. Rubin apples during the harvest. The apple tree (Malus domestica Borkh.) cv. Rubin was grafted on dwarfing rootstocks P60, planted in single rows spaced 1.25 m between trees and 3.5 m between rows. Six agrotechnological tools were used—hand pruning, mechanical pruning, trunk incision, calcium-prohexadione, summer pruning and mechanical pruning one side, changing sides annually. The agrotechnical tools had no significant effect on accumulation of most sugars and elements, malic, folic and succinic acids in the fruits. Mechanical pruning resulted in significant accumulation of phenolic compounds, antioxidants, ascorbic acid, but reduced the amount of glucose compared to hand pruning. However, the trunk incision or spraying with ca-prohexadione together with mechanical pruning had no significant effect on sugar content but resulted in significantly higher amounts of phenols, antioxidants, ascorbic acid, Fe and Mn and reduced starch and citric acid.

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Technological Characteristics of Some Apple Cultivars

Cited by 9 publications

References 0 publications

Physico-Chemical Analysis of the Fruits and Consumer Preferences of New Apple (Malus × domestica Borkh) Hybrids Bred in Poland

Physico-Chemical Analysis of the Fruits and Consumer Preferences of New Apple (Malus × domestica Borkh) Hybrids Bred in Poland

Estimating Viscosity of Low Sugar Apple Marmalade Using Backpropagation Neural Network

The Influence of Agrotechnological Tools on cv. Rubin Apples Quality

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