Analysis of Sugars and Organic Acids Contents of Date Palm (Phoenix Dactylifera L.) 'Barhee' During Fruit Development

Mortazavi, Seyed Mohammad Hassan; Arzani, K.; Barzegar, Mohsen

doi:10.17660/actahortic.2010.882.90

Cited by 11 publications

(19 citation statements)

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“…Data showed that the total reducing sugars were ranging from 51.3 to 20.82 g/100g with the content of glucose being lower than fructose in most samples. In other hand, we observed that Btana samples contain lower sugar content in comparison to date fruit extract; it is rather lower than what had been reported in most date fruits (Abdel Moneim et al 2012;Hamad et al 2015;Mortazavi et al 2010). We also noticed the presence of fermentation byproducts in Btana samples indistinctively which explains that a part of carbohydrate in date fruit was converted into fermentation products by microbial action (Hamad et al 2015).…”

Section: Resultssupporting

confidence: 43%

Metabarcoding analysis and fermentation performance of the dominant fungal microbiota associated with the Algerian traditional date product “Btana”

et al. 2021

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The study highlights the fungal diversity of the traditional Algerian date's product "Btana" prepared with direct Btana method (DBM) and undirect Btana method (UBM). Btana fungal populations were analyzed through 28S metabarcoding. Data treatment resulted in 122,997 reads representing three Phyla in which 76% reads (46 OTUs) belong to Ascomycota phylum. Zygosaccharomyces rouxii was the most prevailed species accounting for 35.40% of the total population. Similarity percentage analysis revealed a low level of resemblance in species in each of the two Btana types (DBM: 17.26%, UBM: 16.87). According to HPLC analysis, lactate was detected in nine samples within a range of 0.87-23.06 g/100g. Culture plating and subsequent D1/ D2 domain of 28s DNA analysis showed the prevalence of Z. rouxii. Fermentation of non-renewed date medium revealed a high ethanol production (21.31 ± 2.89 g/100g) by Lachancea thermotolerans and 5.87 g/100g of lactates by Kluyveromyces delphensis. Enzymatic assay revealed a high esterase (C4) and naphtol-AS-BI-phosphohydrolase activity by L. thermotolerans, K. delphensis, and Pichia subpelliculosa, while a high level of α-fucosidase was recorded for L. thermotolerans and P. subpelliculosa. The current results demonstrated that the traditional date product Btana is a promising source for yeasts useful in production of value-added products like bioethanol and lactic acid using low-income date cultivars.

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Section: Resultssupporting

confidence: 43%

Metabarcoding analysis and fermentation performance of the dominant fungal microbiota associated with the Algerian traditional date product “Btana”

et al. 2021

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“…The optical density of the extract was determined at a spectrum of 663 nm for chlorophyll a, 646 nm for chlorophyll b and 470 for carotene using a spectrophotometer (UV1901PC spectrophotometer). Pigment contents were expressed by the next equations: Chlorophyll a (µg/mL) = 12.21 E663 − 2.81 E646 (5) Chlorophyll b (µg/mL) = 20.13 E646 − 2.81 E663…”

Section: Fruit Pigmentsmentioning

confidence: 99%

“…The failure of a considerable section of H 2 O improves the TSS concentration. This concern makes the fruit much sweeter [5]. The lower TSS is owing to the gentler switch from carbohydrates to sugars [28].…”

Section: Total Soluble Solids (Tss)mentioning

confidence: 99%

“…But in the case of date fruit, the failure of a significant part of the water improves the soluble solids concentration. This concern impacts both the taste and the texture of date fruit and makes the fruit much sweeter [5].…”

Section: Total Soluble Solids (Tss)mentioning

confidence: 99%

“…During the Rutab phase, the fruit's firm texture becomes mushy, dessert-like, and tasty. At the end of the maturing phase, i.e., Tamar, fruit moisture declines to <24%, body texture turns dry, and its color alters to dark brown [4,5]. The Barhi type is one of the most common date palm cultivars in the Mediterranean area and is usually collected and eaten fresh at the Khalal phase, but they are likely to rapidly ripen and enter the rutab phase under regular storing circumstances [6].…”

Section: Introductionmentioning

confidence: 99%

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Utilization of Active Edible Films (Chitosan, Chitosan Nanoparticle, and CaCl2) for Enhancing the Quality Properties and the Shelf Life of Date Palm Fruits (Barhi Cultivar) during Cold Storage

et al. 2022

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Interest in edible coatings applications has progressively developed towards improving the quality and shelf life of climacteric fruits. This study aimed to investigate the influence of pre-harvest treatments (chitosan, chitosan nanoparticle, and CaCl2) on the physicochemical and quality attributes of Barhi date palm fruits during storage periods. Different pre-harvest treatments (control, chitosan 1, 2, and 3 g/L, CaCl2 1, 2, and 3 g/L, nano-chitosan 1, 2, and 3 cm3 /L) were applied. The results showed that all treatments were effective for enhancing the fruit quality, with increasing total soluble solids and total sugars, decreasing weight loss, discarded total acidity, and total soluble tannins compared to the control treatment. Additionally, the results revealed that the highest percentage of TSS was obtained in control fruits (35.78%). Meanwhile, the lowest mean values were obtained from chitosan nanoparticle at 3 cm3/L (33.91%). Treatments with chitosan nanoparticle at 3 cm3/L and CaCl2 at 3 g/L gave the statistically highest values of total tannins (0.225 and 0.220, respectively). The optimal treatment involved spraying the fruit with 3 cm3/L of nano-chitosan or 3 g/L of CaCl2 to increase the fruit quality and the shelf life of Barhi dates. The results indicated that weight loss was negatively linked with the moisture content and firmness, while decay had a strong positive relationship with the Rutab index and a negative correlation with the moisture content. Furthermore, the Rutab index was negatively associated with the total tannins and total chlorophyll.

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Optimization of in vitro germination and cryopreservation conditions for preserving date palm pollen in the USDA National Plant Germplasm System

Oliveira

Lédo

Polek

et al. 2020

Plant Cell Tiss Organ Cult

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Analysis of Sugars and Organic Acids Contents of Date Palm (Phoenix Dactylifera L.) 'Barhee' During Fruit Development

Cited by 11 publications

References 0 publications

Metabarcoding analysis and fermentation performance of the dominant fungal microbiota associated with the Algerian traditional date product “Btana”

Metabarcoding analysis and fermentation performance of the dominant fungal microbiota associated with the Algerian traditional date product “Btana”

Utilization of Active Edible Films (Chitosan, Chitosan Nanoparticle, and CaCl2) for Enhancing the Quality Properties and the Shelf Life of Date Palm Fruits (Barhi Cultivar) during Cold Storage

Optimization of in vitro germination and cryopreservation conditions for preserving date palm pollen in the USDA National Plant Germplasm System

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