scholarly journals Deletion of beta-fructofuranosidase (invertase) genes is associated with sucrose content in Date Palm fruit

2019 ◽  
Author(s):  
Joel A. Malek ◽  
Sweety Mathew ◽  
Lisa Mathew ◽  
Shameem Younuskunju ◽  
Yasmin A. Mohamoud ◽  
...  

AbstractThe fruit of date palm trees are an important part of the diet for a large portion of the Middle East and North Africa. The fruit is consumed both fresh and dry and can be stored dry for extended periods of time. Date fruits vary significantly across hundreds of cultivars identified in the main regions of cultivation. Most dried date fruit are low in sucrose but high in glucose and fructose. However, high sucrose content is a distinctive feature of some date fruit and affects flavor as well as texture and water retention. To identify the genes controlling high sucrose content we analyzed date fruit metabolomics for association with genotype data from 121 date fruits. We found significant association of dried date sucrose content and a genomic region that contains 3 tandem copies of the beta-fructofuranosidase (invertase) gene in the reference Khalas genome, a low sucrose fruit. High sucrose cultivars including the popular Deglet Noor had a homozygous deletion of two of the 3 copies of the invertase gene. We show the deletion allele is derived when compared to the ancestral allele that retains the all copies of the gene in 3 other species of Phoenix. The fact that 2 of the 3 tandem invertase copies are associated with dry fruit sucrose content will assist in better understanding the distinct roles of multiple date palm invertases in plant physiology. Identification of the recessive alleles associated with end-point sucrose content in date fruit may be used in selective breeding in the future.

Plant Direct ◽  
2020 ◽  
Vol 4 (5) ◽  
Author(s):  
Joel A. Malek ◽  
Sweety Mathew ◽  
Lisa S. Mathew ◽  
Shameem Younuskunju ◽  
Yasmin A. Mohamoud ◽  
...  
Keyword(s):  

2021 ◽  
Vol 35 (1) ◽  
pp. 11-19
Author(s):  
Babak Madani ◽  
Abdolmajid Mirzaalian Dastjerdy ◽  
Ali Shahriyari

‘Piyarom’ dates are one of the most important commercial date cultivars grown in Iran but fruit quality and postharvest losses can be a problem. Thinning and the use of bunch covers were examined to improve the date fruit quality. Three different levels of fruit thinning were applied (without thinning, removal of one third of total strands from terminal tips during pollination and removal of one third of terminal tips of central strands in early kimri). In addition, the effects of bunch covers were assessed with the use of polyethylene bunch covers that were applied in the early stages of Khalal. The results showed that bunch covering reduced the lightness of the fruit but increased bunch weight, fruit length, total antioxidant activity and total phenolic compounds compared to the control. Thinning during pollination increased the weight of the fruit compared to the control. The thinning during Kimri stage increased the percentage of Tamar and ascorbic acid content. These results show that the use of covers play a positive role in increasing quality and bunch weight and thinning at both pollination and Kimri ripening stage is recommended to produce high quality ‘Piyarom’ dates.


2020 ◽  
Author(s):  
Alireza Bagherzadeh Karimi ◽  
Asghar Elmi ◽  
Mojgan Mirghafourvand ◽  
Roghyeh Baghervand Navid

Abstract Background: The rate of cesarean section is increasing in all over the world with different drafts in various countries. This growth increases unpleasant outcomes of delivery. Recent studies explained the benefits of date palm fruit on labor process improvement. Date fruit can be considered as a factor for increasing vaginal delivery and also reducing the frequency of caesarean section in order to prevent its great complications. This systematic review has been designed to review clinical studies that investigate the effects of date palm fruit on labor outcomes (duration of labor stages, bishop score, and frequency of cesarean section) compared with routine cares. Methods: This study was performed in 2019. Required data has been collected from electronic databases and manual searches. All randomized clinical trials evaluating the effects of date palm fruit on labor and delivery that were published from January 2000 to August 2019 in English and Persian languages, were incorporated in this systematic review. The methodological quality of the included studies was evaluated according to the risk of bias assessment of Cochrane handbook of systematic reviews, and were then reported using Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) statement. Results: Eight studies were included in the qualitative and quantitative synthesis. Meta-Analysis showed that date fruit consumption can significantly reduce active phase of labor (three trials with 380 participants; (MD= -109.3, 95%CI (-196.32, -22.29; I2=89%), P=0.01), and also it can significantly improve the bishop score (two trials with 320 participants; MD = 2.45, 95%CI (1.87, 3.04; I2=0%), P<0.00001). Date fruit consumption had no effects on the duration of first, second, and third stages of labor, and the frequency of cesarean section. Conclusion: Date can reduce the duration of active phase and improve the bishop score; however, due to from the low to mediate quality of the studies; it seems that the other studies are needed to prove these results better than this.


Processes ◽  
2020 ◽  
Vol 8 (3) ◽  
pp. 256 ◽  
Author(s):  
Krishnamoorthy Rambabu ◽  
Govindan Bharath ◽  
Abdul Hai ◽  
Fawzi Banat ◽  
Shadi W. Hasan ◽  
...  

Production of highly soluble date sugar powder from the nutritive date fruits will be a suitable and superior alternative to commercial refined sugar, providing sustainability in date palm cultivation. A good understanding of the nutritional and phytochemical composition of date fruits is imperative for this purpose. In this work, 11 different date fruit species commonly cultivated in the United Arab Emirates were studied for their chemical composition, physical properties, amino acids, minerals, and anti-nutritional contents. The results revealed that the date fruits contain moisture, protein, lipid, and ash content in the ranges of 14.8%–20.5%, 2.19%–3.12%, 0.25%–0.51%, and 1.37%–1.97%, respectively. Potassium was identified as the major microelement in all the date varieties. Amino acid assay depicted that the date fruits mainly contained glutamine and aspartic acids, along with other essential acids. Monosaccharides (glucose and fructose) were more prevalent in the date fruits than polysaccharides (sucrose), exhibiting the potential of date fruit for non-diabetic sugar production. Phytoconstituents present in date samples, such as flavonoids, oxalates, tannins, saponins, alkaloids, and cyanides, were also evaluated and reported. Results showed that although all date fruit varieties were nutritious, they contain significant variation in their nutritional, physical, elemental, and phytochemical properties.


2019 ◽  
Author(s):  
Alireza Bagherzadeh Karimi ◽  
Asghar Elmi ◽  
Mojgan Mirghafourvand ◽  
Roghyeh Baghervand Navid

Abstract Background : The rate of cesarean section is increasing in the world with different drafts in various countries. This growth increases unpleasant outcomes of delivery. Recent studies explained benefits of date palm fruit on labor process improvement. Date fruit can be a factor to increase vaginal delivery and to reduce frequency of cesarean section to prevent its great complications. This systematic review has been designed to review clinical studies that investigate the effects of date palm fruit on labor outcomes (duration of labor stages, bishop score and frequency of cesarean section) compared with routine cares. Methods : This study was performed in 2019. Required data has been gathered from electronic databases and manual searches. All randomized clinical trials evaluating the effects of date palm fruit on labor and delivery that have been published from January 2000 to August 2019 in English and Persian languages were included in this systematic review. The methodological quality of the included studies were evaluated according to the risk of bias assessment of Cochrane handbook of systematic reviews and were reported using, Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) statement. Results : Six studies were included in the qualitative and quantitative synthesis. Meta-Analysis showed that date fruit consumption significantly reduces active phase of labor (MD= -60.26, 95%CI (-107.18, -13.34), P=0.01) and significantly reduces duration of the first stage of labor (MD= -50.90, 95%CI (-100.63, -1.16), P=0.04) and significantly improves the bishop score (MD = 2.45, 95%CI (1.87, 3.04), P<0.00001) and it reduces the frequency of cesarean section but not significantly (Odds Ratio= 0.67, 95%CI (0.44, 1.02), P=0.06). Conclusion : Date can reduce the duration of active phase and the first stage of labor and the rate of cesarean section and improves the bishop score, but due to from the low to mediate quality of the studies, it seems that the other studies are needed to prove these results better than this. Key words : Date palm, date fruit, Phoenix dactiylifera, delivery, labor, systematic review, meta-analysis.


2005 ◽  
Vol 10 (1) ◽  
pp. 21 ◽  
Author(s):  
S. Al-Rehiayani ◽  
K.A. Osman

The fate of pre-harvest-sprayed dicofol (DCF) on date fruits has been investigated. Date palm trees, variety Sukkari, were sprayed with DCF (18.5%, EC) at the rate of 200 ml/100 L. DCF residues in date fruits were determined at different time intervals using high performance liquid chromatography (HPLC) with UV detection at 220 nm. The method was based on extraction with ethyl acetate. The results showed that the HPLC response was linear (r2 > 0.98) for DCF in the range of 0.0 to 2 mμg. The limits of detection and quantification were 0.24 and 0.80 ppm, respectively. The method was developed by using spiked date fruits at levels of 0.25, 0.50 and 1.0 ppm. Recovery percentage was satisfactory with a range of 77.2 to 103.6% and an RSD ranging from 6.33 to 11.84%. A biphasic model was assumed in order to carry out the statistical study of the loss of DCF from date fruits. The results showed that the initial deposit of DCF on date fruits was 11.22 ppm, while the residue value decreased to 1.90 ppm seven days after spraying, which is below the tolerance limit for fruits and vegetables (2 ppm). Also, the data indicate that there was a faster rate of DCF loss in the first phase than the second one. This is clearly reflected in the t1/2 values, where the half-lives of DCF were 1.35 and 38.52 days, for the first and second phase model, respectively. The described method is rapid and sensitive, with satisfactory recoveries and reproducibility. 


2020 ◽  
Author(s):  
Alireza Bagherzadeh Karimi ◽  
Asghar Elmi ◽  
Mojgan Mirghafourvand ◽  
Roghyeh Baghervand Navid

Abstract Background : The rate of cesarean section is increasing in all over the world with different drafts in various countries. This growth increases unpleasant outcomes of delivery. Recent studies explained the benefits of date palm fruit on labor process improvement. Date fruit can be considered as a factor for increasing vaginal delivery and also reducing the frequency of caesarean section in order to prevent its great complications. This systematic review has been designed to review clinical studies that investigate the effects of date palm fruit on labor outcomes (duration of labor stages, bishop score, and frequency of cesarean section) compared with routine cares. Methods : This study was performed in 2019. Required data has been collected from electronic databases and manual searches. All randomized clinical trials evaluating the effects of date palm fruit on labor and delivery that were published from January 2000 to August 2019 in English and Persian languages, were incorporated in this systematic review. The methodological quality of the included studies was evaluated according to the risk of bias assessment of Cochrane handbook of systematic reviews, and were then reported using Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) statement. Results : Eight studies were included in the qualitative and quantitative synthesis. Meta-Analysis showed that date fruit consumption can significantly reduce active phase of labor (three trials with 380 participants; (MD= -109.3, 95%CI (-196.32, -22.29; I 2 =89%), P=0.01), and also it can significantly improve the bishop score (two trials with 320 participants; MD = 2.45, 95%CI (1.87, 3.04; I 2 =0%), P<0.00001). Date fruit consumption had no effects on the duration of first, second, and third stages of labor, and the frequency of cesarean section. Conclusion : Date can reduce the duration of active phase and improve the bishop score; however, due to from the low to mediate quality of the studies; it seems that the other studies are needed to prove these results better than this. Key words : Date Palm, Date fruit, Phoenix dactiylifera, Delivery, Labor, Systematic review, Meta-analysis.


2020 ◽  
Author(s):  
Alireza Bagherzadeh Karimi ◽  
Asghar Elmi ◽  
Mojgan Mirghafourvand ◽  
Roghyeh Baghervand Navid

Abstract Background: The rate of cesarean section is increasing in all over the world with different drafts in various countries. This growth increases unpleasant outcomes of delivery. Recent studies explained the benefits of date palm fruit on labor process improvement. Date fruit can be considered as a factor for increasing vaginal delivery and also reducing the frequency of caesarean section in order to prevent its great complications. This systematic review has been designed to review clinical studies that investigate the effects of date palm fruit on labor outcomes (duration of labor stages, bishop score, and frequency of cesarean section) compared with routine cares. Methods: This study was performed in 2019. Required data has been collected from electronic databases and manual searches. All clinical trials evaluating the effects of date palm fruit on labor and delivery that were published from January 2000 to August 2019 in English and Persian languages, were incorporated in this systematic review. The methodological quality of the included studies was evaluated according to the risk of bias assessment of Cochrane handbook of systematic reviews, and were then reported using Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) statement. Results: Nine studies were included in the qualitative and quantitative synthesis. Meta-Analysis showed that date fruit consumption can significantly reduce active phase of labor (three trials with 380 participants; (MD= -109.3, 95%CI (-196.32, -22.29; I2=89%), P=0.01), and also it can significantly improve the bishop score (two trials with 320 participants; MD = 2.45, 95%CI (1.87, 3.04; I2=0%), P<0.00001). Date fruit consumption had no effects on the duration of first, second, and third stages of labor, and the frequency of cesarean section. Conclusion: Date can reduce the duration of active phase and improve the bishop score; however, due to from the low to mediate quality of the studies; it seems that the other studies are needed to prove these results better than this. Key words: Date Palm, Date fruit, Phoenix dactiylifera, Delivery, Labor, Systematic review, Meta-analysis.


Author(s):  
Dwisari Dillasamola ◽  
Almahdy A ◽  
Ria Anggraini ◽  
Skunda Diliarosta ◽  
Biomechy Oktomalio P ◽  
...  

Objective: The date palm (Phoenix dactylifera L) is one of the plants empirically used to increase fertility. The aim of this study was to compare the effect of ethanol extract of date palm fruit and propolis on fertility in female mice.Methods: 5 groups were assigned to 1 control and 4 experimental groups. The experimental group treated by oral administration of 100, 200 and 400 mg/kgBW of khalal date fruit extract and 200 mg/kgBW of propolis for 5, 10 and 15 days. Control groups received no extract. After 5, 10 and 15 days the mice were deeply anesthetized with anesthetic ether and sacrificed. Histological changes in ovary and uterine were measured. The data was analyzed by using two way ANOVA and Duncan test.Results: The results of the study of the effect of the dose and duration of the ethanol extract of khalal date fruit on the histology of ovaries and uterine mice showed that there was an increase in the number of primary, secondary, tertiary, degraaf, and corpus luteum follicles but did not affect the follicle of atresia and myometrial and endometrial thickness. in Propolis a dose of 100mg / kgBW increase occurs only in primary, secondary and corpus luteum follicles.Conclusion: Ethanol extract of khalal date fruit and Propolis can increase the number of ovarian follicles. Ethanol extract of khalal date fruit dose can increase the number of ovarian follicles higher than propolis.


2014 ◽  
Vol 3 (2) ◽  
pp. 83-86 ◽  
Author(s):  
ZD Umar ◽  
A Bilkisu ◽  
A Bashir

Date palm is widely cultivated, distributed and consumed by various individuals. Most of the date palm fruits sold in Nigeria are either damaged or has insufficient quality for human consumption. This study was carried out to determine the bacterial load of date fruits in Katsina metropolis. Enumeration of bacteria was determined using pour plate technique. Serial dilution was carried out, where 10g of date fruits was homogenized in 90ml of diluents and used as stock solution. The bacterial counts were determined using colony forming unit per gram of the date fruit samples (cfu/g). The results obtained revealed high bacterial load in all the samples analyzed, which indicates the fruits contamination with bacteria. This may be due to unhygienic handling of the fruits from the local sellers and the nutritional contents of the fruit that may serve as good source of nutrients to bacteria. Date fruits should be packed and processed in a very hygienic condition for public health importance DOI: http://dx.doi.org/10.3126/ije.v3i2.10517 International Journal of the Environment Vol.3(2) 2014: 83-86


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