effect of some drying methods on quality of palm date

SAMPLING SAMPLE PREPARATION AND DATA ANALYSIS

Freezing drying heat treatment and chemical preservatives (or a combination) are often used to control enzyme activity with the method used depending on the type of food being analyzed and the purpose of the analysis Lipid Protection Unsaturated lipids may be altered by various oxidation reactions

Valorization Study of Treated Deglet

reproducible product quality mainly because of the inherent limitation in controlling the drying process [8] In the literature there are several studies dealing with the dates treatments and valorisations methods Some of these studies focus on the development of the date's quality in palm [9-10] In addition some works carry out the

Soil Erosion Due to Rainforest Deforestation

Apr 25 2017The logging and clear-cutting of rain forests are some of the leading causes of soil erosion worldwide In the Amazon rain forest of Brazil for example an area the size of a football field is cut every second leaving vast swaths of land vulnerable to wind rains and floods that cause erosion Because tree roots hold

Drying of Exotic Tropical Fruits: A Comprehensive Review

This paper provides a capsule overview of recent experimental studies dealing with the drying of a large assortment of tropical and subtropical fruits also called "exotic" fruits The term exotic includes a number of tropical fruits that are not yet commonly found in global markets but do have the potential to do so in view of their appearance taste and textural and nutritional quality

The Effect of Drying Air Temperature and Humidity on the

Drying kinetics of kenaf core was investigated in a Low Temperature and Humidity Chamber Test The drying experiments were carried out at temperature of 45 50 and 55C and air relative humidity of 10 20 and 30% using a constant air velocity of 1 0 m/s The moisture content data at various drying air conditions were converted to moisture ratio and plotted against time to obtain the drying

Effect of drying temperatures and pre

work This study investigates the effect of various blanching methods on the drying characteristics and quality of bell pepper and to fit the experimental data obtained to some of the generally accepted thin layer drying models 2 Materials and methods 2 1 Drying procedure Freshly harvested red bell pepper (Capiscum annum) samples with nearly

Sterilizing Practices

Although some hospitals continue to date every sterilized product and use the time-related shelf-life practice many hospitals have switched to an event-related shelf-life practice This latter practice recognizes that the product should remain sterile until some event causes the item to become contaminated (e g tear in packaging packaging

Effect of Drying Temperature on the Stability of

The effect of drying temperature (60 100 and 140 C) on the polyphenols' content and antioxidant activity of red grape pomace peels was studied Freeze-dried samples were used as reference Differences on the CIE-LAB color total extractable polyphenols condensed tannins UV−vis spectra and antioxidant activity were evaluated When drying temperature was 100

RETTING PROCESS OF SOME BAST PLANT FIBRES AND ITS EFFECT

The traditional methods for separating the long bast fibres are by dew and water retting Both methods require 14 to 28 days to degrade the pectic materials hemicellulose and lignin Even though the fibres produced from water retting can be of high quality the long duration and polluted water have made this method less attractive

Soil Erosion Due to Rainforest Deforestation

Apr 25 2017The logging and clear-cutting of rain forests are some of the leading causes of soil erosion worldwide In the Amazon rain forest of Brazil for example an area the size of a football field is cut every second leaving vast swaths of land vulnerable to wind rains and floods that cause erosion Because tree roots hold

Effect of different drying techniques on flowability

In this study the effect of four different drying methods (i e oven drying 105C vacuum oven drying 60C freeze drying and spray drying) on the flow characteristics and functional properties of durian seed gum was investigated The purified seed gum was

Storage Temperatures and Procedures

7 Storage Temperatures and Procedures A food service operation needs to have clearly defined storage areas and procedures for several reasons First by providing storage facilities it is possible to purchase supplies in quantities large enough quantities to get price breaks

Determination of Food Quality by Using Spectroscopic Methods

Feb 13 2012FTIR methods for the determination of other minor components present in oils including free fatty acids in refined and crude oils β-carotene in palm oil and phospholipids in vegetable oils have also been reported Likewise fluorescence MIR spectroscopy is used to study adulteration of olive oil by other edible oils

9 8 2 Dehydrated Fruits And Vegetables

Drying or dehydration is the removal of the majority of water contained in the fruit or vegetable and is the primary stage in the production of dehydrated fruits and vegetables Several drying methods are commercially available and the selection of the optimal method is determined by quality

Effect of different drying techniques on flowability

In this study the effect of four different drying methods (i e oven drying 105C vacuum oven drying 60C freeze drying and spray drying) on the flow characteristics and functional properties of durian seed gum was investigated The purified seed gum was

18 Evidence

May 27 2020Some research states that the date palm pollen is used in traditional medicine for enhancing male fertility They are semi-dry and not too sweet They are usually used in cooking Mohammed Akbar and Mohammed Abdul Sattar Khan "Beneficial effects of date palm fruits on neurodegenerative diseases " Neural regeneration research 11 7

Determination of Food Quality by Using Spectroscopic Methods

Feb 13 2012FTIR methods for the determination of other minor components present in oils including free fatty acids in refined and crude oils β-carotene in palm oil and phospholipids in vegetable oils have also been reported Likewise fluorescence MIR spectroscopy is used to study adulteration of olive oil by other edible oils

EFFECT OF BLANCHING METHODS ON

5458 Volume 11 No 7 December 2011 ABSTRACT Various blanching methods and drying temperatures were applied to bell pepper (Capiscum annum) to investigate the effect on drying characteristics Pepperits (Capiscum annum) is an abundant and cheap source of vitamins minerals and fibre However its high moisture content makes it susceptible to deterioration

Investigation of Solar Drying of Ginger (Zingiber

Drying is a simultaneous heat and mass transfer energy intensive operation widely used as a food preservation technique In view of improper postharvest methods energy constraint and environmental impact of conventional drying methods solar drying could be a practical economical and environmentally reliable alternative In the present paper applicability of

Impact of Pretreatments and Drying Temperatures on Quality

Effect of pretreatments and drying temperatures on total phenols content of dried date products: Regarding dried Siwi date products data of total phenols in Table 6 Total phenols ranged from the lowest value 0 428% for control whole date fruits dried at 50C to the highest value 0 507% for date pieces pretreated with sulfur dioxide and dried at 65C

DETERMINATION OF MOISTURE AND TOTAL SOLIDS

Food Quality The texture taste appearance and stability of foods depends on the amount of water they contain Food Processing Operations A knowledge of the moisture content is often necessary to predict the behavior of foods during processing e g mixing drying flow through a pipe or packaging

DETERMINATION OF MOISTURE AND TOTAL SOLIDS

Food Quality The texture taste appearance and stability of foods depends on the amount of water they contain Food Processing Operations A knowledge of the moisture content is often necessary to predict the behavior of foods during processing e g mixing drying flow through a pipe or packaging

Effect of different drying techniques on flowability

In this study the effect of four different drying methods (i e oven drying 105C vacuum oven drying 60C freeze drying and spray drying) on the flow characteristics and functional properties of durian seed gum was investigated The purified seed gum was

Tree planting

Tree-planting is the process of transplanting tree seedlings generally for forestry land reclamation or landscaping purpose It differs from the transplantation of larger trees in arboriculture and from the lower cost but slower and less reliable distribution of tree seeds Trees contribute to their environment over long periods of time by providing oxygen improving air quality

How to Preserve Food by Drying

Here is some useful information on drying meats and the right temperature – Drying Meats Drying Foods Out-of-Doors Sun Drying Drying food in the sun is a safe and economical way to preserve food especially fruits Meats and vegetables however cannot be dried outdoors since they have a low sugar and acid content