چکیده:
New plant gums obtained from different sources have attracted the attention of researchers for a wide range of applications, especially in the food industry. These molecules were used for a variety of purposes since they are chemically inert, biodegradable, less expensive, non-toxic and widely available. They represent one of the most abundant raw materials used not only in commercial food products, but also in cosmetic and pharmaceutical products. Among these gums, the ones produced by Rosaceae family have been taking special attention. Rosaceae family consists of peach, plum, apricot, cherry, and almond trees which all can produce exudate gums. Mountain or wild almond (Amygdalus scoparia Spach) is a tree or a shrub from this family that a transparent type of gum is exuded from the trunk and branches of this tree namely Farsi gum (also called Zedo gum). Thus, the aim of this review is to report the recent advances in Farsi gum and other rosaceae plant gum exudates. An emphasis is given for their chemical composition, structures and functional properties.
خلاصه ماشینی:
Comparison of Some Physicochemical and Functional Properties of Farsi Gum and Other Rosaceae Plant Gum Exudates Javad Amini Rastabi 1*, Ali Nasirpour2 1.
Rosaceae family consists of peach, plum, apricot, cherry, and almond trees which all can produce exudate gums.
The most studied Rosaceae plants for their gums (including those produced by stone-fruits, fruits, and trees) are: Cherries, plums, apricots, peaches and almonds ]6[.
2. Rosaceae gum chemical composition Exudate gums are composed of different substances, mainly polysaccharides with diverse structures.
In recent study, it has been demonstrated that the main constituent of Farsi gum exudates is carbohydrates (93.
Almond trunk gum exudates presented large amounts of minerals, with the main constituents being calcium (6317 ppm), magnesium (752.
Rosaceae gum structures The exudate gums of Rosaceae family are mainly composed of galactose, arabinose and glucuronic acid with other sugars present in small or trace quantities ]17-18[.
6 In a recent study, monosaccharide composition of almond gum (molecular weight =11.
Other findings showed that, gum exudate polysaccharide from nectarine trunk (molecular weight = 3.
Monosaccharide composition of some Rosaceae gums Cherry gum Almond gum Plum gum Nectarine gum Apricot gum Peach gum Farsi gum Ara=60.
In recent study, the emulsion capacity and stability of Farsi gum solution was evaluated.
It is assumed that high molecular weight of Farsi gum polysaccharide could be the main factor contributing to its emulsification properties ]28[.
"Chemical composition and functional properties of gum exudates from the trunk of the almond tree (Prunus dulcis).