References
- Pfander, H : Key to Carotenoids, 2nd ed., Birkhauser Verlag, Basel, Switzland., 1987
- Olson, JA : Biological actions of carotenoids, J. Nutr., 119(1):94, 1989
- Quackerbush, FW : Reversed-phase HPLC separation of cis and trans-carotenoids and its application to beta carotene in food materials. J. Liquid Chrom., 10:643, 1987 https://doi.org/10.1080/01483918708069015
- Erdman, JW, Jr., Poor CL and Dietz, JM : Factors affecting the bioavaility of vitamin A, carotenoids, and vitamin E. Food Technol., Oct., 42(10)214, 1988
- Simpson, KL : Chemical changes in natuial food pigments. In: Chemical Changes in Food during Processing, AVI, Richardson T & Finley JW, eds., Westport, CT, P411, 1985
- Sweeney, JP and Marsh, AC : Effect of processing on provitamin A in vegetables. J. Am. Dietet. Assoc., 59:238, 1971
- Chen, BH : Studies on the stability of carotenoids in garland chrysanthemum(Ipomoea spp.) as affected by microwave and conventional heating. J. Food Prot., 55(4):296, 1992
- Chen, BH and Han, LH : Effects of different cooking methods on the yield of carotenoids in water convolvulus(Ipomoea aquatica). J. Food Prot., 53(12): 1076, 1990
- Khachik, F, Goli, MB, Beecher, GR, Holden, Lusby, WR, Tenorio, MD and Barrera, MR : Effect of food preparation on qualitative and quantitative distribution of major carotenoid contituents of yomatoes and several green vegetables. J. Agric. Food Chem., 40:390, 1992 https://doi.org/10.1021/jf00015a006
- Steinmetz, KA and Potter, JD : Vegetables, fruit, and cancer. II. Mechanism. Cancer Causes and Control., 2:427, 1991 https://doi.org/10.1007/BF00054304
- Chen, BH and Chen, YY : Stability of chlorophylls and carotenoids in sweet potato leaves during microwave cooking. J. Argric. Food Chem., 41:1315, 1993 https://doi.org/10.1021/jf00032a029
-
Chandler, LA and Schwartz, SJ : Isomerization and losses of trans-
$\beta$ -carotene in sweet potatoes as affected by processing treatments. J. Agric. Food Chem., 36:129, 1988 https://doi.org/10.1021/jf00079a033 - Baloch, AK, Buckle, KA and Edwards, RA : Effect of processing on the quality of dehydrated carrot. J. Food Technol., 12:285, 1977 https://doi.org/10.1111/j.1365-2621.1977.tb00109.x
- Dietz, JM and Gould, WA : Effects of process stage and storage on retention of beta-carotene in tomato juice. J. Food Sci., 51(3):847, 1986 https://doi.org/10.1111/j.1365-2621.1986.tb13951.x
- Lee, CY, Massry Jr, LM and van Buren, JP : Effects of posthavest handling and processing on vitamin content of peas. J. Food Sci., 47(3):961, 1982 https://doi.org/10.1111/j.1365-2621.1982.tb12755.x
- Chandle, LA and Schwartz, SJ : HPLC seperation of cis-trans carotene isomers in fresh and processed fruits and vegetables. J. Food Sci., 52(3):669, 1987 https://doi.org/10.1111/j.1365-2621.1987.tb06700.x
- Dudek, JA, Elkins, ER, Chin, HB and Hagen, RE : Investigations to determine nutrient content of selectedfruits and vegetables-raw, Processed and prepared. Nat. Food Proc. Assoc. USDA Contract No. 43-32U4-8-92
- Edwards, CG and Lee, CY : Measuerment of provitarnin A carotenoids in fresh and canned carrots and green vegetables. J. Food Sci., 51(2):534, 1986 https://doi.org/10.1111/j.1365-2621.1986.tb11180.x
- Ogunlesi, AT and Lee, CY : Effect of thennal processing on the steroisomerization of major carotenoids and vitamin A value of carrots. Food Chem., 4(4):311, 1979 https://doi.org/10.1016/0308-8146(79)90019-0
- Gomez, MI : Carotene content of some green leafy vetables of Kenya and effects of dehyfration and storageon carotene retention. J. Plant Foods, 3:231, 1981
- Granado, F, Olmedilla, B, Blanco, I and Rojas-Hidalgo, E : Carotenoid composition in raw and cooked spanish vegetables. J. Agric. Food Chem., 40:2135, 1992 https://doi.org/10.1021/jf00023a019
- Panalaks, T and Murray, TK : Effect of processing on the content of carotene isomers in vegetables and peachs. J. Inst. Can. Technol., 3:145, 1970
- Booth, VH : Inactivation of the carotene-oxidizing system in Iris leaf. J. Sci. Food Agric., 11:8, 1960 https://doi.org/10.1002/jsfa.2740110102
- Ueno, T, Maekawa, A and Suzuki, T : Effect of lipoxygenase on the determination of carotene in vegetables. Vitamins(Jpn.), 56:83, 1982
- Pesek. CA and Warthesen, JJ : Kinetic model for photoisomerization and concomitant photodegradation of beta-carotenes. J. Agric. Food Chem., 38:1313, 1990 https://doi.org/10.1021/jf00096a004
- Marin, MA, Cano, P and Fuster, C : Freezing preservation of 4 spanish mango cu1tivars(Manigifera-indica L)-chemical and biochemical aspects. Zeitschriftfur Lebensmittel Untersuchung und Forschung, 194:566, 1992 https://doi.org/10.1007/BF01185485
- Yeum, KJ, Booth, SL, Sadowski, JA, Liu, C, Tang, G, Krinsky, NI. and Russell, RM : Human Plasma carotenoid response to the ingestion of controlled diets high in fruits and vegetables. Am. J. Clin. Nutr., 64:594, 1996
- Lessin, WJ, Catigani, GL and Schwartz, SJ : Quantification of cis-trans Isomers of provitamin A carotenoids in fresh and processed fruits and vegetables. J. Agric. Food Chem., 45:3728, 1997 https://doi.org/10.1021/jf960803z
- Chen, HE, Peng, HY and Chen, BH : Stability of carotenoids and vitamin A during storage of carrot juice. Food Chem., 57(4):497, 1996 https://doi.org/10.1016/S0308-8146(96)00008-8
-
O'Neil, CA and Schwartz SJ : Photoisomerization of
$\beta$ -carotene by photosensitization with chlorophyll derivatives as sensitizer. J. Chromatogr., 624:235, 1992 https://doi.org/10.1016/0021-9673(92)85682-J - Khachik, F, Goli, MB, Beecher, GR, Holden, J, Lusby, WR, Tenorio, MD and Barrera, MR : Effect of food preparation on qualitative and quantitative distribution of major carotenoid constituents of tomatoes and several green. J. Agric. Food Chem., 40:390, 1992 https://doi.org/10.1021/jf00015a006