scholarly journals EFFECT OF TRYPTOPHAN AND SOME POST HARVEST TREATMENT ON SOME CHEMICAL AND PHYSICAL PROPERTIES OF DATE PALM FRUIT (Phoenix dactylifera L.) C.V ASHRASSI: تأثير التربتوفان وبعض معاملات مابعد الحصاد في بعض الصفات الفيزيائية والكيميائية لثمار التمر (.Phoenix dactylifera L) صنف أشرسي

2019 ◽  
Vol 3 (3) ◽  
Author(s):  
Eman Hekmet Hassan  , Ghalib Nassir Hussein  ,   Nabeel Ibra
Keyword(s):  
Heat Treatment ◽  
Date Palm ◽  
Growing Season ◽  
Phoenix Dactylifera ◽  
Fruit Weight ◽  
Reducing Sugar ◽  
Total Sugar ◽  
Palm Fruit ◽  
Post Harvest ◽  
Phoenix Dactylifera L

    The study was conducted on date palm fruit (Phoenix dactylifera L.) c.v. Ashrassi, wich included tow experiment: first one field study carried out during the growing season 2017 at Mandali date palm station/ Ministery of Agriculture, the second one was A laboratory experiment conducted at Post harvest physiology lab at the Department of Horticulture and Landscape Grading/ College Agriculture University of Diyala,9 trees were selected at 10 years old homogeneous in size and growth planted at 5x5 m, The experiment was designed as factorial experiment using Complete Block Designed (RCBD), with two factor: tryptophan spraying at 0, 100, 200 ml. L- 1 concentration five times one spray each month, at Hababok stage, the second factor: some artificial ripening method to promote fruit Ripening, included (heat treatment at 20ºC for 10 minutes, freezing the fruit at- 18 ºC for 42 hours, and soaking the fruit in ethephon solution at 1000, 1500 ml. L- 1. The results can summarized as follow, The interaction between tryptophan spray with 200 ml. L- 1 and freezing the fruit gave the highest values for fruit weight, length and total sugar percent, also the interaction between tryptophan spray with 200 ml. L- 1 and soaking the fruit in ethephon solution at 1500ml.L- 1 resulted significant increase in reducing sugar percent.    

scholarly journals Impact of organic manure and combination of N P K S, on yield, fruit quality and fruit mineral content of Khenazi date palm (Phoenix dactylifera L.) cultivar

2017 ◽  
Vol 1 ◽  
pp. 335
Author(s):  
Elsadig Hassan Elsadig ◽  
Hameed Jasim Aljuburi ◽  
Ali Hamad Bashir Elamin ◽  
Mohamed Osman Gafar
Keyword(s):  
Fruit Quality ◽  
Date Palm ◽  
Nutrient Content ◽  
Phoenix Dactylifera ◽  
Fruit Weight ◽  
Organic Manure ◽  
Mineral Nutrient ◽  
Fruit Number ◽  
Combination Treatments ◽  
Phoenix Dactylifera L

This study was carried out during three successive seasons 2011, 2012 and 2013 at a private orchard located in Al- Hello in Ajman Emirate (UAE). The experiment was designed to study the effect of organic manure and NPKS as soil application on yield, fruit quality, and fruit mineral nutrient content of Khenazi date palm cultivar grown in sandy soil. Fertilization treatments consisted of N1, 600g or N2, 1000g (urea 46%N), P 800g (triple superphosphate, 48% P2O5), K 1200g (potassium sulphate, 50% K2SO4) and S 700g sulphur (90% granular S), in addition to organic manure. Al experimental trees received 100g mixture of micronutrients, with the exception of the control. The results showed that combination treatments and organic manure significantly affected fruit weight, flesh weight, fruit volume, moisture content and fruit TSS. Application of different fertilization treatments significantly affected yield components of fruit, number of fruits/strand, fruit number/bunch, fruit set percent and total fruit yield / palm. The study revealed that combination of fertilizers improved fruit nutrient content of N, P, K, Ca, Mg, Fe, Zn, Mn and Cu. Moisture and TSS% content, number of fruits/strand, number of fruits/bunch, fruit nutrients content of Fe, Mn and Zn were significantly different due to the application of N1+K+S.

scholarly journals Chemical Characteristics, Antioxidant Activity, Total Phenol, and Caffeine Contents in Coffee of Date Seeds (Phoenix dactylifera L.) of Red Sayer Variety

2019 ◽  
Vol 8 (2) ◽  
pp. 179-184
Author(s):  
Siti Warnasih ◽  
◽  
Ade Heri Mulyati ◽  
Diana Widiastuti ◽  
Zuniar Subastian ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
United Arab Emirates ◽  
Date Palm ◽  
Natural Antioxidants ◽  
Phoenix Dactylifera ◽  
Total Sugar ◽  
Total Phenol ◽  
Chemical Characteristics ◽  
Phoenix Dactylifera L ◽  
Palm Juice

Red Sayer is one of the date varieties from the United Arab Emirates. This variety is one type of dates that is imported into Indonesia and used as processed date palm juice producing waste, namely date seeds. Date seeds can be made into some coffee that is rich in antioxidants and does not contain caffeine. The purpose of this study is to determine the chemical characteristics, antioxidant activity, total phenol, and caffeine contents in coffee of the Red Sayer variety date seeds. Coffee of date seeds is made into powder and then analyzed for its contents of water, ash, protein, fat, carbohydrates and total sugar, besides its antioxidant activity, total phenol, and caffeine levels. The results of the analysis obtained are, as follows: 4.42±0.01% water, 1.17±0.04% ash, 8.55±0.64% protein, 7.34±0.07% fat, 78.52±0.76% carbohydrate, 16.39±0.01% total sugar, 23.81±0.22 µg/mL antioxidant activity (IC50) and 340.65±1.53 mg GAE / 100g total phenol, while caffeine is not detected. Red Sayer date seed coffee, therefore, can be a source of carbohydrates and natural antioxidants that does not contain caffeine.

Protective effect of date palm fruit extract (Phoenix dactylifera L.) on dimethoate induced-oxidative stress in rat liver

2011 ◽  
Vol 63 (5) ◽  
pp. 433-441 ◽  
Author(s):  
Emna Behija Saafi ◽  
Mouna Louedi ◽  
Abdelfattah Elfeki ◽  
Abdelfattah Zakhama ◽  
Mohamed Fadhel Najjar ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Protective Effect ◽  
Rat Liver ◽  
Date Palm ◽  
Phoenix Dactylifera ◽  
Fruit Extract ◽  
Palm Fruit ◽  
Phoenix Dactylifera L

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 La extracción de polen, aplicación y efecto en la calidad del fruto de la palma datilera / Pollen extraction, application and effect on the quality of the date palm fruit

2021 ◽  
Vol 4 (2) ◽  
pp. 2146-2155
Author(s):  
Ricardo Salomón-Torres ◽  
Noé Ortiz-Uribe ◽  
Jesús Arturo Sol-Uribe ◽  
Noé Salvador Ortiz-Ruiz ◽  
Laura Samaniego-Sandoval
Keyword(s):  
Date Palm ◽  
Phoenix Dactylifera ◽  
Palm Fruit ◽  
La Palma ◽  
Phoenix Dactylifera L

El manejo de la polinización en el cultivo de palma datilera, es un proceso clave en el éxito de la cosecha de dátiles. El presente trabajo es una revisión de las técnicas más comunes tanto de extracción de polen, como de polinización en la palma datilera (Phoenix dactylifera L.). Asimismo se hace un análisis de la influencia de las fuentes de polen de los cultivares Deglet Noor, Khadrawy, Medjool y Zahidi sobre la calidad física y nutricional del dátil cultivar Medjool en México, donde se muestra que el uso de polen de machos criollos derivados de la variedad Khadrawy inducen mayor peso de fruto y semilla, así como mayor contenido de azucares, minerales y fenoles. 

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