Year 2023, Volume 8, Issue 1

Year : 2023
Volume : 8
Issue : 1
   
Authors : Soyol DASHBALDAN, Cezary PĄCZKOWSKI, Anna SZAKIEL
Title : ISOPRENOID CONTENT OF PEACH PRUNUS PERSICA AND APRICOT PRUNUS ARMENIACA FRUIT CUTICULAR WAXES
Abstract : Peach (Prunus persica L. Batsch) and apricot (Prunus armeniaca L.) are very popular drupe-type fleshy fruits from Rosaceae family, important to the agricultural economies of many countries. The majority of Rosaceae fruits are characterized with a relatively high content of isoprenoids (triterpenoids and steroids) occurring in their surface cuticular waxes. However, the data concerning the occurrence of these compounds in peaches and apricots are scarce. The aim of the present study was the determination of isoprenoid content in the cuticular waxes of peach var. ‘Redhaven’ and apricot var. ‘Somo’ cultivated in Poland. Chloroform-soluble wax extracts obtained from fruit samples were fractionated with the use of preparative adsorption chromatography and analyzed by gas chromatography-mass spectrometry (GC-MS). The profile of the identified compounds was similar in both fruits. However, some quantitative and qualitative differences were noticed. Triterpenoid acids (betulinic, oleanolic and ursolic acids) were the predominating fraction of isoprenoids identified in cuticular waxes of both fruits, however, they were 4-fold more abundant in peach. Moreover, dihydroxy acid of oleanane-type, maslinic acid, was identified only in peach, whereas ursane-type corosolic acid only in apricot wax. The fraction of the neutral triterpenoids was similar, composed primarily of oleanane- and ursane-type alcohols and aldehydes. Typical profile of steroids was identified in both fruits, however, stigmasterol was dominating in peach, whereas sitosterol in apricot. The total contents of isoprenoids in peach (approx. 90 µg/mg of wax extract) and apricot (approx. 27 µg/mg) cuticular waxes were found to be significantly less than in other Rosaceae fruits.
For citation : Dashbaldan, S., Pączkowski, C., Szakiel, A. (2023). Isoprenoid content of peach Prunus persica and apricot Prunus armeniaca fruit cuticular waxes. AGROFOR International Journal, Volume 8. Issue No. 1 pp. 53-59. DOI: 10.7251/AGRENG2301053D
Keywords : ricot, cuticular wax, peach, steroids, triterpenoids
   
download paper

 

r