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2-Methyl-3-furanthiol and methional are possible off-flavors in stored orange juice: aroma-similarity, NIF/SNIF GC-O, and GC analyses.
J Agric Food Chem. 2001 Nov; 49(11):5425-32.JA

Abstract

The occurrence of methional in fresh orange juice, and possible occurrence of beta-damascenone in heated orange juice, has been previously suggested. Here we report on the occurrence of 2-methyl-3-furanthiol in the headspace, collected by solid-phase micro-extraction, of fresh, pasteurized, and stored orange juice. The contents of 2-methyl-3-furanthiol and methional were quantified, and the relative level of beta-damascenone was estimated, in the headspace of fresh, pasteurized, and stored orange juices using the nasal impact frequency (NIF) and surface of NIF (SNIF) GC-Olfactometry procedure. 2-Methyl-3-furanthiol concentrations were 2 ng/L in fresh and pasteurized Shamuti orange juice, and 270 ng/L in stored juice of the same variety. Methional concentrations were 550, 830, and 11,550 ng/L in fresh, pasteurized, and stored pasteurized juices, respectively. beta-Damascenone content appeared to have increased during pasteurization and storage. Aroma-similarity experiments strongly suggest that 2-methyl-3-furanthiol and methional, at the levels found in stored orange juice (21 days at 35 degrees C), contribute to stored orange juice off-flavor.

Authors+Show Affiliations

Institute of Biochemistry, Food Science and Nutrition, Faculty of Agricultural, Food and Environmental Quality Sciences, The Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76-100, Israel.No affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

11714338

Citation

Bezman, Y, et al. "2-Methyl-3-furanthiol and Methional Are Possible Off-flavors in Stored Orange Juice: Aroma-similarity, NIF/SNIF GC-O, and GC Analyses." Journal of Agricultural and Food Chemistry, vol. 49, no. 11, 2001, pp. 5425-32.
Bezman Y, Rouseff RL, Naim M. 2-Methyl-3-furanthiol and methional are possible off-flavors in stored orange juice: aroma-similarity, NIF/SNIF GC-O, and GC analyses. J Agric Food Chem. 2001;49(11):5425-32.
Bezman, Y., Rouseff, R. L., & Naim, M. (2001). 2-Methyl-3-furanthiol and methional are possible off-flavors in stored orange juice: aroma-similarity, NIF/SNIF GC-O, and GC analyses. Journal of Agricultural and Food Chemistry, 49(11), 5425-32.
Bezman Y, Rouseff RL, Naim M. 2-Methyl-3-furanthiol and Methional Are Possible Off-flavors in Stored Orange Juice: Aroma-similarity, NIF/SNIF GC-O, and GC Analyses. J Agric Food Chem. 2001;49(11):5425-32. PubMed PMID: 11714338.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - 2-Methyl-3-furanthiol and methional are possible off-flavors in stored orange juice: aroma-similarity, NIF/SNIF GC-O, and GC analyses. AU - Bezman,Y, AU - Rouseff,R L, AU - Naim,M, PY - 2001/11/21/pubmed PY - 2002/1/15/medline PY - 2001/11/21/entrez SP - 5425 EP - 32 JF - Journal of agricultural and food chemistry JO - J Agric Food Chem VL - 49 IS - 11 N2 - The occurrence of methional in fresh orange juice, and possible occurrence of beta-damascenone in heated orange juice, has been previously suggested. Here we report on the occurrence of 2-methyl-3-furanthiol in the headspace, collected by solid-phase micro-extraction, of fresh, pasteurized, and stored orange juice. The contents of 2-methyl-3-furanthiol and methional were quantified, and the relative level of beta-damascenone was estimated, in the headspace of fresh, pasteurized, and stored orange juices using the nasal impact frequency (NIF) and surface of NIF (SNIF) GC-Olfactometry procedure. 2-Methyl-3-furanthiol concentrations were 2 ng/L in fresh and pasteurized Shamuti orange juice, and 270 ng/L in stored juice of the same variety. Methional concentrations were 550, 830, and 11,550 ng/L in fresh, pasteurized, and stored pasteurized juices, respectively. beta-Damascenone content appeared to have increased during pasteurization and storage. Aroma-similarity experiments strongly suggest that 2-methyl-3-furanthiol and methional, at the levels found in stored orange juice (21 days at 35 degrees C), contribute to stored orange juice off-flavor. SN - 0021-8561 UR - https://www.unboundmedicine.com/medline/citation/11714338/2_Methyl_3_furanthiol_and_methional_are_possible_off_flavors_in_stored_orange_juice:_aroma_similarity_NIF/SNIF_GC_O_and_GC_analyses_ L2 - https://doi.org/10.1021/jf010724+ DB - PRIME DP - Unbound Medicine ER -
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