The following is a list of relevant papers to our onion testing services. All publications were written by a staff member at the VFIC.
List of Publications
Yoo KS, Lee EJ, Patil BS. 2012. Changes in flavor precursor, pungency, and sugar contents in shortday onion bulbs during five month storage at various temperatures and controlled-atmosphere. J Food Sci 77(2):C216-21.
Yoo KS, Lee EJ, Patil BS. 2011. Underestimation of pyruvic acid concentrations by fructose and cysteine in 2,4-dinitrophenylhydrazine-mediated onion pungency test. J Food Sci 76:1136-1142.
Yoo KS, Lee EJ, Patil BS. 2011. Improved consistency in DNPH-mediated pyruvic acid analysis of onion juice by modifying the sample processing order. J Food Sci 76:162-167.
Lee EJ, Yoo KS, Jifon J, Patil BS. 2009. Application of extra sulfur to high-sulfur soils does not increase pungency and related compounds in shortday onions. Sci. Hort. 123:178-193.
Lee EJ, Yoo KS, Jifon J, Patil BS. 2009. Characterization of shortday onion cultivars of 3 pungency levels with flavor precursor, free amino acid, sulfur, and sugar contents. J. Food Sci. 74(6). C475-480.
Yoo KS, Pike L, Crosby K, Jones R, Leskovar D. 2006. Differences in onion pungency due to cultivars, growth environment, and bulb sizes. Scientia Horticulturae. 110:144-149.
Havey M, Cantwell M, Jones M, Jones RW, Schmidt NE, Uhlig J, Yoo KS. 2002. Significant variation exists among laboratories measuring onion bulb quality traits. HortScience 37(7): 1086-1087.
Yoo KS, Pike LM. 2001. Determination of background pyruvic acid concentrations in onions, Allium species, and other vegetables. Scientia Horticulturae 89:249-256.
Yoo KS, Pike LM. 1999. Development of an automated system for pyruvic acid analysis in onion breeding. Scientia Horticulturae 82:193-201.
Yoo KS, Pike LM. 1998. Determination of flavor precursor compound S- alk(en)yl-L-cysteine sulfoxides by an HPLC method and their distribution in Allium species. Scientia Horticulturae 75:1-10.
Hamilton BK, Yoo KS, Pike LM. 1998. Changes in pungency of onions by soil type, sulfur nutrition, and bulb maturity. Scientia Horticulturae 74:249-256.
Hamilton BK, Pike LM, Yoo KS. 1997. Clonal variations of pungency, sugar content, and bulb weight of onions due to sulfur nutrition. Scientia Horticulturae. 71:131-136.
Yoo KS, Pike LM, Hamilton BK. 1995. Simplified pyruvic acid analysis suitable for onion breeding programs. HortScience 30:1306.