scholarly journals Improving 'Piyarom' date palm fruit quality with fruit thinning and bunch covering treatments

2021 ◽  
Vol 35 (1) ◽  
pp. 11-19
Author(s):  
Babak Madani ◽  
Abdolmajid Mirzaalian Dastjerdy ◽  
Ali Shahriyari
Keyword(s):  
Fruit Quality ◽  
Date Palm ◽  
Ascorbic Acid Content ◽  
Total Phenolic ◽  
Positive Role ◽  
Palm Fruit ◽  
Fruit Thinning ◽  
Date Fruit ◽  
Total Antioxidant ◽  
Different Levels

‘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.

scholarly journals Antioxidant Activity of Date Palm Fruit (Phoenix dactylifera L.) Extract for Oxidative Stabilisation of Butter Oil at Ambient Temperature

2015 ◽  
Vol 58 (2) ◽  
pp. 59-64
Author(s):  
Fazal Rahman ◽  
Muhammad Nadeem ◽  
Sabir Khan ◽  
Shakeel Ahmad ◽  
Yasir Zahoor
Keyword(s):  
Linoleic Acid ◽  
Ambient Temperature ◽  
Date Palm ◽  
Radical Scavenging ◽  
Phoenix Dactylifera ◽  
Oxidation Products ◽  
Total Phenolic ◽  
Palm Fruit ◽  
Butter Oil ◽  
Phoenix Dactylifera L

In this study, long term preservation of butter oil was achieved through ethanolic extract of date palm fruit (Phoenix dactylifera L.). Butter oil was supplemented with date palm fruit extract (DPFE) at three different concentrations i.e. 250, 500 and 750 ppm (T1, T2 and T3) and compared with a control. Total phenolic content, DPPH free radical scavenging activity and inhibition of linoleic acid peroxidation of the DPFE was 5.19 GAE, 74.2 and 81%, respectively. IC50 value of date extract for the inhibition of DPPH and linoleic acid peroxidation was 2.45 and 0.82 mg/mL, respectively. The loss of oleic acid and linoleic acid in control after six months of storage was 16 and 52% as compared to T3 which was 4% and 14%. T3 yielded the lowest concentration of primary and secondary oxidation products with no effect on sensory attributes. DPFE can be used to enhance the shelf life of  butter oil at ambient temperature. 

scholarly journals Effects of Date Fruit (Phoenix Dactylifera L.) on Labor and Delivery Outcomes: A Systematic Review and Meta-Analysis

2020 ◽  
Author(s):  
Alireza Bagherzadeh Karimi ◽  
Asghar Elmi ◽  
Mojgan Mirghafourvand ◽  
Roghyeh Baghervand Navid
Keyword(s):  
Systematic Review ◽  
Cesarean Section ◽  
Systematic Reviews ◽  
Date Palm ◽  
Meta Analysis ◽  
Active Phase ◽  
Bishop Score ◽  
Palm Fruit ◽  
Date Fruit

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.

scholarly journals l-Ascorbic acid content and antioxidant capacity in less-known fruit juices

2019 ◽  
Vol 37 (No. 5) ◽  
pp. 359-365
Author(s):  
Ivo Soural ◽  
Petr Šnurkovič ◽  
Monika Bieniasz
Keyword(s):  
Ascorbic Acid ◽  
Phenolic Compounds ◽  
Antioxidant Capacity ◽  
Nutritional Value ◽  
Aloe Vera ◽  
Ascorbic Acid Content ◽  
The Other ◽  
Total Phenolic ◽  
Total Phenolic Compounds ◽  
Total Antioxidant

Eight less-known juices are characterised and contents are monitored of selected substances and nutritional parameters. 100% juices were produced of Aloe Vera, Aronia, Blackcurrant, Black elder, Cranberry, Malpighia, Pomegranate and Seaberry by pressing, including the flesh. Total phenolic compounds (TPC) and ascorbic acid (AA) content were analysed as other parameters. The juices were measured on total antioxidant capacity (TAC) as the content of trolox, where the highest levels were found for Malpighia 63.2 mM, when the value was significantly different (P &lt; 0.05) compared with all the other juices, while Aloe Vera had lowest levels with 0.4 mM. The Aronia juice possessed the highest level of TPC (8297 mg of GAE/l). TAC levels very well corresponded with TPC levels while AA content actually did not correlate with TAC values. In addition to the objective analysis, the juices were subjected to a sensory evaluation. Blackcurrant presents an attractive product from the sensorial aspect as well as in terms of the nutritional value.

scholarly journals   Fruit quality attributes of blackberry grown under limited environmental conditions

2012 ◽  
Vol 58 (No. 7) ◽  
pp. 322-327 ◽  
Author(s):  
T. Milošević ◽  
N. Milošević ◽  
I. Glišić ◽  
J. Mladenović
Keyword(s):  
Fruit Quality ◽  
Shape Index ◽  
Quality Attributes ◽  
Soluble Solids ◽  
Total Phenolic ◽  
Physical Parameters ◽  
Total Antioxidant ◽  
Good Potential ◽  
Commercial Crop ◽  
Solids Content

Fruit quality attributes were studied for two consecutive years in seven blackberry cultivars grown in a Serbian climate and on acidic soil. Physical parameters [berry weight (BW), size and shape] and chemical parameters [soluble solids content (SSC), acidity, total phenolic (TPH) and flavonoid content (TFC) and total antioxidant capacity (TAC)] were evaluated. A high variability was found in the set of the evaluated blackberry cultivars and significant differences were found among them in all studied quality attributes. Year-by-year variations were observed for all quality traits, except berry length (L) and berry shape index (BSI). A high correlation was found among TPH and TAC. In addition, most of cultivars had good adaptation capability and respectable fruit quality attributes, and also had good potential as a commercial crop for fresh and processing markets and future breeding programs. &nbsp;

scholarly journals Impact of Chemical and Non-Chemical Thinning Treatments on Yield and Fruit Quality of Date Palm

2015 ◽  
Vol 4 (4) ◽  
pp. 18
Author(s):  
Mohamed S. Al Saikhan ◽  
Abdel-Kader A. Sallam
Keyword(s):  
Fruit Quality ◽  
Date Palm ◽  
Fruit Set ◽  
Block Design ◽  
The Other ◽  
Alternate Bearing ◽  
High Quality ◽  
Fruit Thinning ◽  
Thinning Process

<p>The fruit thinning process is employed for the production of high quality large-sized fruits and prevent the production of compact bunches. It is also one way to reduce the alternate bearing habits in date palm. In this study, seven thinning treatments (i.e. without spraying water after pollination, spraying water at 3 minutes after 3, 4 and 5 h, spraying Ethephon at 0, 500 and 1000 ppm after ten days from pollination) are used for Khalas and Ruzeiz date palm cultivars. The factorial experiment in a randomized completely block design with three replicates was done. The results reveal that, spraying water after mechanical pollination has reduced fruit set% and increased fruit shees%. Most thinning treatments reduced fruit yield/palm in both Khalas and Ruzeiz. Spraying water after 5 h enhanced fruit quality compared with the other thinning treatments in besr and tamr stages. Spraying with ethephon at 1000 ppm gave the increased sugars content and TSS, whereas reduced the moisture content in besr stage. Spraying water after 5 h from mechanical pollination or Ethephon at 1000 ppm after 10 days are suitable for obtaining economic yield with best fruit quality.</p>

scholarly journals Fruit Quality and Phytochemical Attributes of Some Apricot (Prunus armeniaca L.) Cultivars as Affected by Genotypes and Seasons

2012 ◽  
Vol 40 (2) ◽  
pp. 284 ◽  
Author(s):  
Oguzhan CALISKAN ◽  
Safder BAYAZIT ◽  
Ahmet SUMBUL
Keyword(s):  
Fruit Quality ◽  
Eastern Mediterranean ◽  
Eastern Mediterranean Region ◽  
Prunus Armeniaca ◽  
Solid Content ◽  
Total Phenolic ◽  
Soluble Solid Content ◽  
Growing Seasons ◽  
Total Antioxidant ◽  
Soluble Solid

This study was conducted over two growing seasons (2010 and 2011) to evaluate effects on fruit quality and phytochemical properties of new Turkish cultivars, hybrid between Irano-Caucasian- and European eco-geographic groups, and some important apricot cultivars in the eastern Mediterranean region of Turkey. Fruit quality characteristics, sensory traits, and phytochemical parameters were investigated. The data showed that considerable variation existed in fruit quality and phytochemical properties of Turkish, and foreign apricot cultivars based on genotypes and growing seasons. The new hybrid cultivar ‘Çağataybey’ contained the highest total soluble solid content (14.6%), rich total phenolic (93.9 mg GAE 100g-1 fw), and total antioxidant capacity levels (9.8 mmol Fe2+ kg-1 fw), and >50% of blush color on the fruit peels among the cultivars. The fructose and sucrose values showed positively significant correlations with total phenolics (r = 0.55 and r = 0.69, at p< 0.05, respectively). The authors had estimated that the data will be useful for breeding studies to improve fruit quality and nutritional contents of apricot cultivars.

scholarly journals Date Palm Extract (Phoenix dactylifera) PEGylated Nanoemulsion: Development, Optimization and Cytotoxicity Evaluation

Plants ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 735
Author(s):  
Hany Ezzat Khalil ◽  
Nashi K. Alqahtani ◽  
Hossam M. Darrag ◽  
Hairul-Islam Mohamed Ibrahim ◽  
Promise M. Emeka ◽  
...  
Keyword(s):  
Particle Size ◽  
Serum Protein ◽  
Date Palm ◽  
Phoenix Dactylifera ◽  
Qualitative Assessment ◽  
Total Serum Protein ◽  
Total Serum ◽  
Total Phenolic ◽  
Palm Fruit

Date palm fruit (Phoenix dactylifera) is reputed to have numerous biological activities, including anticancer properties. To utilize the great fortune of this fruit, the current study aimed to maximize its pharmacological activity. Date palm extract (DPE) of Khalas cultivar was obtained in powder form and then was formulated into nanoemulsion (NE). The optimized DPE-NE was formulated along with its naked counterpart followed by studying their physical and chemical properties. A qualitative assessment of total serum protein associated with the surface of formulations was implemented. Studies for the in vitro release of DPE from developed NE before and after incubation with serum were investigated. Eventually, an MTT assay was conducted. Total phenolic and flavonoid contents were 22.89 ± 0.013 mg GAE/g of dry DPE and 9.90 ± 0.03 mg QE/g of dry DPE, respectively. Homogenous NE formulations were attained with appropriate particle size and viscosity that could be administered intravenously. The optimized PEGylated NE exhibited a proper particle size, PDI, and zeta potential. Total serum protein adsorbed on PEG-NE surface was significantly low. The release of the drug through in vitro study was effectively extended for 24 h. Ultimately; PEGylated NE of DPE attained significant inhibition for cancer cell viability with IC50 values of 18.6 ± 2.4 and 13.5 ± 1.8 µg/mL for MCF-7 and HepG2 cell lines, respectively. PEGylated NE of DPE of Khalas cultivar will open the gate for future adjuvants for cancer therapy.

Antioxidant and Nutritional Properties of Date Fruit from Elche Grove as Affected by Maturation and Phenotypic Variability of Date Palm

2009 ◽  
Vol 15 (1) ◽  
pp. 65-72 ◽  
Author(s):  
A. Amorós ◽  
M.T. Pretel ◽  
M.S. Almansa ◽  
M.A. Botella ◽  
P.J. Zapata ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Organic Acid ◽  
Functional Properties ◽  
Date Palm ◽  
Phenotypic Variability ◽  
Total Antioxidant Activity ◽  
High Concentration ◽  
Date Fruit ◽  
Total Antioxidant ◽  
Maturation Stages

Some parameters related to nutritive and functional properties were evaluated in date fruit from seven date palms from the Elche grove along the maturation process, in order to obtain information about differences due to phenotypic variability. Results showed that sugar and organic acid concentration were different depending on date palm, the highest levels being reached at 100% Rutab stage, with glucose and fructose as the predominant sugars and malic acid as the major organic acid. Hydrophilic total antioxidant activity (HTAA) was high and correlated to phenolic content, with maxima levels being found at early, medium or late Khalal stages, depending on date palm. In addition, significant differences were found in both, phenolic concentration and HTAA among date palm and maturation stages, while lipophilic total antioxidant activity (LTAA) was very low, without changes along maturation and not correlated to HTAA. Then, date fruit from Elche grove could serve as a good source of natural antioxidant and it would be advisable to consume them at medium or late Khalal stages, in order to achieve the maxima nutritional (high concentration of sugars and organic acids), organoleptic (appropriated firmness levels, yellow or red color and low astringency) and functional properties with benefits to human health.

scholarly journals Effects of Date fruit (Phoenix Dactylifera) on Bishop Score and Frequency of Caesarean Section: A Systematic Review and Meta-Analysis

2019 ◽  
Author(s):  
Alireza Bagherzadeh Karimi ◽  
Asghar Elmi ◽  
Mojgan Mirghafourvand ◽  
Roghyeh Baghervand Navid
Keyword(s):  
Systematic Review ◽  
Cesarean Section ◽  
Date Palm ◽  
Meta Analysis ◽  
Active Phase ◽  
Bishop Score ◽  
Palm Fruit ◽  
Date Fruit ◽  
First Stage Of Labor

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.

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