000 02308cab a2200289Ia 45 0
999 _c47072
_d47072
001 u193570
003 SIRSI
008 110719s2007 ua ss b eng d
040 _aEAL
041 _aeng
_bara
090 _aART AJFST V4 No2 6
100 1 _aEL-Sayed, Samiha M.
_922328
240 1 0 _aAlexandria journal of food science and technology, 2007 v.4 (2)
_h[electronic resource].
245 1 0 _aStability of lycopene, ß-carotene and vitamin A in tomatoes and some tomato products
_h[electronic resource].
246 1 5 _aثبات الليكوبين والبتا-كاروتين وفيتامين أ فى الطماطم وبعض منتجاتها.
300 _ap.53-58.
504 _aIncludes references.
520 _aTomatoes are among the most widely consumed vegetables worldwide and an important source of certain antioxi¬dants including Iycopene , ß-carotene and vitamin A , and also have important anticarcinogenic properties. Consump¬tion of tomato and tomato products for their content of antioxidants could be of a great benefit for human health. In the present study, Iycopene, {J-carotene and vitamin A contents of tomatoes and tomato products (including tomato juice, jam, paste, puree, sauce, soup, powder and ketchup) were determined by HPLC. Data showed that the concentrations of lycopene, {J-carotene and vitamin A in tomato products ranged from 6596 to 214952 µg/100g, 170 to 5540 µg/100g and 283.63 to 9242.941U/l00g, respectively. The highest concentrations of Iycopene, ß -carotene and vitamin A were traced in tomato paste with oil followed by tomato paste without oil. The stability of lycopene, {J-carotene and vitamin A in tomato ketchup during storage for 3 months were influenced by environmental factors such as temperature and light. The stability of the aforementioned compounds A in tomato ketchup during storage at ambient temperature or at 4- C were affected by the light exposure as compared to samples which stored in the dark.
546 _aSummary in Arabic.
650 0 _aTomatoes.
_922329
650 0 _aLycopene.
_922330
650 0 _aVitamin A.
_922331
700 1 _aFarag, Samia El-Safy.
_922332
773 0 _tAlexandria Journal of Food Science and technology.
_g2007.v.4(2)
_x1687-3920
_7nnas
856 4 0 _uhttp://nile.enal.sci.eg/EALE/2007/AJFST/407/2/53.pdf
_zFull Text Article
942 _cAR
_2lcc