PHYSICAL AND CHEMICAL CHANGES IN FRUITS OF THREE DATES PALM (Phoenix dactylifera L.) GROWN IN SOUTH VALLEY, EGYPT

Ragab, W. S. M.; Ramadan, B. R.; Sorour, M. A.; Ahmed, Naglaa L.

doi:10.21608/jfds.2011.81985

Cited by 2 publications

(2 citation statements)

References 10 publications

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“…2). Variation in mineral contents in different date cultivar were also reported by Ragab et al (2011) and Assirey (2015). They found differences in mineral contents between different date varieties such as; Khodari, Anabarah, Sukkari, Suqaey and Burni and between Ajwa, Shalaby, Safawy and Labanah.…”

Section: Mineral Diversity In Date Fruits Varietiesmentioning

confidence: 62%

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Physico-Chemical Diversity and Microbial Burden in Four Dates Palm (Phoenix Dactylifera L.) Fruit Varieties Grown in Agro-Climatic Condition of Turbat, Balochistan-Pakistan

Aslam¹

2019

Appl. Ecol. Env. Res.

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The aim of this study was to measure the quality indices (physico-chemical and microbial assessment) of four popular date palm fruits (Phoenix dactylifera L.) varieties (Begamjangi, Haleeni, Dashtri and Peshnah) grown in ecologically same agro climatic condition of Turbat Balochistan, Pakistan. Different date palm characteristics including; harvesting time, color and taste of fruits, diversity in fruit, stone weight, length and diameter, variation in chemical composition, sugar, minerals and amino acids contents were recorded by standard methods. Results indicated that there was slightly to highly significant variations among the investigated parameters in different cultivars. Further that microbial burden (cfu/g) on four fruit sizes classes (large, small, medium and mixed) in three fruit processing techniques (unpressed-unpitted, pressed-pitted and unpressed-pitted date fruits) were examined. The results revealed that the different date varieties showed different load of microbial infections. On the basis of all investigated parameters the fruit performance index (FPI) and valuation classes were calculated. The consequences indicated that the Begamjangi score highest grade point (6) and stood in excellent class, followed by Haleeni with grade point 4.0 and categorized in good class. Other two date cultivars Dashtri and Peshnah score 2.0 & 1.0 grade points and classified into poor and very poor group of date palm fruits, respectively.

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Section: Mineral Diversity In Date Fruits Varietiesmentioning

confidence: 62%

“…The extreme average weight and length of stone was found in Dashtari and Peshnah and least in Haleeni and Dashtri, respectively. Variation in these parameters were also observed by Ragab et al (2011). They reported differences in fruit weight at different stages in diverse variety.…”

Section: Productivity Variation In Date Varietiesmentioning

confidence: 77%

Physico-Chemical Diversity and Microbial Burden in Four Dates Palm (Phoenix Dactylifera L.) Fruit Varieties Grown in Agro-Climatic Condition of Turbat, Balochistan-Pakistan

Aslam¹

2019

Appl. Ecol. Env. Res.

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Dynamics of Nutritional Compounds and Antioxidant Activity during Date Palm Fruit Development and Maturity Stages

Messaoudi,

Amara,

Chemsa

et al. 2024

Curr Res Nutr Food Sci

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Date palm fruit development involves several stages, including Habauk, Kimri, Khalal, Rutab, and Tamer stages, characterized by intricate biochemical alterations that lead to the accumulation of various metabolites. The objective of this study was to quantify and statistically evaluate the linearity of nutritional compounds, acidity levels, water content, dry matter, secondary metabolites, and antioxidant activity capacity across the fruit development and maturation stages of two date palm cultivars, Deglet Nour and Degla Beida. Fruits were collected from ten palm trees per cultivar at each growth stage, cleaned, sliced, dried, and powdered. The acidity level was assessed using the Marx method, while water content and dry matter were determined through a drying method. The carbohydrates, proteins, and fats that constitute the nutritional components were quantified using established techniques. The extraction yield of secondary metabolites was calculated using date powder. The water content, PH, carbohydrate, protein, fat content, extraction yield, total Phenol, and total flavonoid content displayed dynamic patterns described by second-order polynomials. The maximum local values for water content, PH, and carbohydrate were observed in both varieties, while the maximum local value for total Phenol was found exclusively in Deglet Nour. Conversely, the minimum local values for protein content, fat content, total flavonoid content, and extraction yield were observed in both varieties. Notably, the minimum local value for total Phenol content was observed only in Degla Beida. For both varieties, the dry matter and antioxidant activity exhibited quadratic dynamics. However, the dry matter showed a positive increasing trend, while the antioxidant activity exhibited a change in the opposite direction.

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PHYSICAL AND CHEMICAL CHANGES IN FRUITS OF THREE DATES PALM (Phoenix dactylifera L.) GROWN IN SOUTH VALLEY, EGYPT

Cited by 2 publications

References 10 publications

Physico-Chemical Diversity and Microbial Burden in Four Dates Palm (Phoenix Dactylifera L.) Fruit Varieties Grown in Agro-Climatic Condition of Turbat, Balochistan-Pakistan

Physico-Chemical Diversity and Microbial Burden in Four Dates Palm (Phoenix Dactylifera L.) Fruit Varieties Grown in Agro-Climatic Condition of Turbat, Balochistan-Pakistan

Dynamics of Nutritional Compounds and Antioxidant Activity during Date Palm Fruit Development and Maturity Stages

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