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Bioactive compounds of grapefruit (Citrus paradisi Cv. Rio Red) respond differently to postharvest irradiation, storage, and freeze drying.
J Agric Food Chem. 2005 May 18; 53(10):3980-5.JA

Abstract

In the present study, the effect of irradiation, storage, and freeze drying on grapefruit bioactive compounds was investigated. Grapefruits were exposed to one of two irradiation doses: 0 (control) or 300 Gy (137Cs, a proposed treatment against fruit flies) and then stored for up to 6 days. At the last storage time point (6 days after harvest), grapefruit pulp from control and irradiated fruits was freeze-dried. Bioactive compounds were extracted from Rio Red grapefruit pulp and analyzed with reverse phase liquid chromatography while volatile compounds were analyzed using gas chromatography. Freeze-dried pulp from irradiated fruits had a higher (P < or = 0.05) flavonoid content (naringin and narirutin) as compared to the freeze-dried pulp from the control fruits. Freeze-drying treatment reduced (P < or = 0.05) the lycopene content, but the reduction (P < or = 0.05) in beta-carotene content occurred only in the control fruit. Reduction in d-limonene and myrcene was observed in the irradiated fruits at 6 days after harvest and in the freeze-dried samples. These results warrant testing of the effect of postharvest treatments and processing on bioactive compounds in functional systems as they have varied effects on different bioactive compounds of grapefruit.

Authors+Show Affiliations

Texas A&M University-Kingsville Citrus Center, 312 N. International Blvd., Weslaco, TX 78596, USA.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

15884827

Citation

Vanamala, Jairam, et al. "Bioactive Compounds of Grapefruit (Citrus Paradisi Cv. Rio Red) Respond Differently to Postharvest Irradiation, Storage, and Freeze Drying." Journal of Agricultural and Food Chemistry, vol. 53, no. 10, 2005, pp. 3980-5.
Vanamala J, Cobb G, Turner ND, et al. Bioactive compounds of grapefruit (Citrus paradisi Cv. Rio Red) respond differently to postharvest irradiation, storage, and freeze drying. J Agric Food Chem. 2005;53(10):3980-5.
Vanamala, J., Cobb, G., Turner, N. D., Lupton, J. R., Yoo, K. S., Pike, L. M., & Patil, B. S. (2005). Bioactive compounds of grapefruit (Citrus paradisi Cv. Rio Red) respond differently to postharvest irradiation, storage, and freeze drying. Journal of Agricultural and Food Chemistry, 53(10), 3980-5.
Vanamala J, et al. Bioactive Compounds of Grapefruit (Citrus Paradisi Cv. Rio Red) Respond Differently to Postharvest Irradiation, Storage, and Freeze Drying. J Agric Food Chem. 2005 May 18;53(10):3980-5. PubMed PMID: 15884827.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Bioactive compounds of grapefruit (Citrus paradisi Cv. Rio Red) respond differently to postharvest irradiation, storage, and freeze drying. AU - Vanamala,Jairam, AU - Cobb,Greg, AU - Turner,Nancy D, AU - Lupton,Joanne R, AU - Yoo,Kil Sun, AU - Pike,Leonard M, AU - Patil,Bhimanagouda S, PY - 2005/5/12/pubmed PY - 2005/6/30/medline PY - 2005/5/12/entrez SP - 3980 EP - 5 JF - Journal of agricultural and food chemistry JO - J. Agric. Food Chem. VL - 53 IS - 10 N2 - In the present study, the effect of irradiation, storage, and freeze drying on grapefruit bioactive compounds was investigated. Grapefruits were exposed to one of two irradiation doses: 0 (control) or 300 Gy (137Cs, a proposed treatment against fruit flies) and then stored for up to 6 days. At the last storage time point (6 days after harvest), grapefruit pulp from control and irradiated fruits was freeze-dried. Bioactive compounds were extracted from Rio Red grapefruit pulp and analyzed with reverse phase liquid chromatography while volatile compounds were analyzed using gas chromatography. Freeze-dried pulp from irradiated fruits had a higher (P < or = 0.05) flavonoid content (naringin and narirutin) as compared to the freeze-dried pulp from the control fruits. Freeze-drying treatment reduced (P < or = 0.05) the lycopene content, but the reduction (P < or = 0.05) in beta-carotene content occurred only in the control fruit. Reduction in d-limonene and myrcene was observed in the irradiated fruits at 6 days after harvest and in the freeze-dried samples. These results warrant testing of the effect of postharvest treatments and processing on bioactive compounds in functional systems as they have varied effects on different bioactive compounds of grapefruit. SN - 0021-8561 UR - https://www.unboundmedicine.com/medline/citation/15884827/Bioactive_compounds_of_grapefruit__Citrus_paradisi_Cv__Rio_Red__respond_differently_to_postharvest_irradiation_storage_and_freeze_drying_ L2 - https://dx.doi.org/10.1021/jf048167p DB - PRIME DP - Unbound Medicine ER -