The antioxidant activity of pomegranate juices extracted by two methods
was determined using three methods: β- carotene, Linoleic acid emulsion, and
DiPhenel Picryl Hydrazyl (DPPH). The juice was extracted by separation arils
from fruits and squee
zed using Cyclone machine (T-1), while the second
extraction method included squeezing the whole halve fruit with previous
machine, (T-2). The potential compounds were determined using ethanol in a
comparison with Butylated hydroxyl Anisole (BHA) as reference antioxidant.
There were significant differences (P<0.05) in the antioxidant activity between
the treatments in all measuring methods. The means of antioxidant activity
amounted to 82.66% in T-1, 86.82% in T-2 and 86.98% in BHA. There was
significant relationship between total phenols and antioxidant activity in all
treatments.
Study was conducted in five locations as the important areas for
pomegranate cultivation and production in Yemen, during the period (15/1–
15/8/2004). Eight accessions of local pomegranate were used in this study:
Taefi, Orkobi, Mellies–Hada, Khaz
emy, Sommaty, Kodary, Chiny and Mellies–
Raudha in addition to the wild pomegranate type (Socotria). The
morphological characters were determined for leaves, flowers,fruits and seeds.
The chemical analysis for juice was also assessed. Maximum rate for fruit
weight was 527.3 gm for Kodary accession, whereas fruit Juic varied between
49.5–63.2%, while peel / fruit was varied between15% in Taefi and 35.9 % in
Chiny, whereas the peel thickness varied between 1.5–4.2 mm. The Scotria was
found to be evergreen, and flowers around the year. Kazemy accession gave
higher fruits number/tree with rate 246.7. The greatest rate of T.S.S and
Vitamin C were 18.57% and 11.12 mg respectively for Chiny accession, and the
highest content of organic acids in these accessions was 0.54 % for Taefi.
The aim of study was to compare the physicochemical and morphological properties of
Five pomegranate cultivars grown in different region of latakia.
Properties included: fruit fresh weight,number of arils per fruit, peel weight, soluble solids
(TS
S), titratable acidity (TA)vitamin, reducing sugar .
Fruit weight ranged from(336.8 -484.77 g), peel weight of the fruit was recorded from
93,84 to 127,85g, juice weight was( 69,33-151,66 g) and reducing sugars ranged between
(3.64 -12.4 %). total soluble solid ranged from( 14.5- 16.5) % and titratable acidity ranged
between( 0.358- 1.321%)in pomegranate juices.vitamin C content also ranged between
11.5- 14.5 mg\100 ml).
