دراسة تغيير التركيب الكيميائي في عصير حبوب صنفين من أصناف الرمان السوري خلال مراحل نضج الثمرة

الملخص EN

The important health benefits of pomegranate fruit is Attributable to its high concentration of polyphenolic compounds.

This compounds concentration is likely to be affected by cultivar, environment and development stage of fruits.

In this study, some physic-chemical characteristics along with minerals (K, Ca, Mg, and Fe) were determined in fruit during maturation stages every 20 day from 30 to 150 day-old fruit of two pomegranate accessions ‘Helo Erbin’(AE) and ‘Lafan Al-Hesn’ (AH) grown in Syria.

The highest percentage of aril and juice and lowest percentage of peel were observed in 150-day-old fruit.

A significant increase in concentrations of total sugars was recorded during both accession fruit ripening.

While the levels of titrable acidity, total phenolics, declined significantly during fruit ripening in both accessions.

The highest concentration of iron and potassium observed in 150 day-old fruit, in 30 day-old fruit for magnesium, and in 50 day-old fruit for calcium concentration.

The highest concentration of total sugar (149600 mg/L) noticed in 150 dayold fruit in AE accession which has a sweet taste and strong red aril colour.

While the highest concentration of total phenolics(2457.8 mg GE/L) was recorded in 30 day-old fruit in AH accession .The results provide important information on the changes in chemical properties of pomegranate fruit during ripening, which is very useful for determination of the fruit quality.