Correlation between Flavour Compounds and Sensory Properties of Potherb Mustard (Brassica juncea,Coss.) Pickle

Abstract

To characterise the flavour of the indigenous Chinese potherb mustard (Brassica juncea, Coss.) pickle, 28 samples representing two typical types with different brining storage time were sourced from 14 cities in the Yangtze River Delta Megalopolis area in China, either short time storage or long time storage pickles sampled from cities open markets. Pickle samples were assessed by descriptive sensory evaluation conducted using a trained panel and an established pickle flavour lexicon. Pickle samples were also analysed for flavour components, as expressed by physico-chemical parameters. The relationships between the flavour compounds and sensory properties of pickles were studied by the partial least squares (PLS) regression method. Results demonstrated that some latent variables both in the independent variables (physico-chemical parameters) and dependent variables (taste sensory attributes) can be extracted to build the PLS models for prediction. PLS1 regression of sensory data revealed that preference was predominantly related to umami taste, whereas umami taste was mainly related to free amino acid of glutamic acid and aspartic acid contents in the pickle juice. The biplot of PLS2 with all the samples and variables explained 100% of the X-variables (instrumental measurements) and 85% of the Y-variables (taste sensory attributes). The prediction abilities of the PLS models obtained yield good results for the prediction of taste sensory characteristics of potherb mustard pickle according to physico-chemical parameters analysis. However, the total instrumental analysing parameters collected for judgement of potherb mustard pickle quality was a rather large set of data, sensory values evaluated by trained panelists are relatively convenient to obtain. These results illustrated the application of multivariate analysis as an effective strategy for improving the quality of potherb mustard pickles.

Keywords

potherb mustard (Brassica juncea Coss.)pickle flavour compounds sensory properties

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References

Baylis L.L. and Rolls E.T. (1991). Responses of neurons in the primate taste cortex to glutamate . Physiology & Behavior 49: 973-979.

Chaudhari N. , Landin A.M. and Roper S.D. (2000). A metabotropic glutamate receptor variant functions as a taste receptor . Nature Neuroscience 3: 113-119.

Drewnowski A. (1996). From asparagus to zucchini: mapping cognitive space for vegetable names . Journal of the American College of Nutrition 15: 1147-1153.

Fenwick G.R. , Griffiths N.M. and Heaney R.K. (1983a). Bitterness in Brussels sprouts (Brassica oleracea L var gemnifera): the role of glucosinolates and their breakdown products . Journal of the Science of Food and Agriculture 34: 73-80.

Fenwick G.R. , Heaney R.K. and Mullin W.J. (1983b). Glucosinolates and their breakdown products in food and food plants . CRC Critical Reviews in Food Science & Nutrition 18: 123-201.

Fenwick G.R. , Curl C.L. , Griffiths N.M. , Heaney R.K. and Price K.R. (1990). Bitter principles in food plants. In: Rouseff R.L. (ed.), Bitterness in Foods and Beverages, Developments in Food Science, Elsevier: Amsterdam.

Fleming H.P. , McFeeters R.F. and Daeschel M.A. (1992). Fermented and acidified vegetables. In: Vanderzant C. and Splittstoesser D.F. (eds.), Compendium of Methods for the Microbiological Examination of Foods, Washington DC: American Public Health Association.

Glanz K. , Basil M. , Maibach E. , Goldberg J. and Snyder D. (1998). Why Americans eat what they do: taste, nutrition, cost, convenience and weight control concerns as influences on food consumption . The Journal of the American Dietetic Association 98: 1118-1126.

Halpern B.P. (2000). Glutamate and the flavor of foods . Journal of Nutrition 130: 910S-914S.

10.

Hugenholtz J. and Starrenburg M.J.C. (1992). Diacetyl production by different strains of Lactococcus lactis subsp. lactis var. diacetylactis and Leuconostoc ssp . Applied Microbiology and Biotechnology 38: 17-22.

11.

Kameoka H. and Hashimoto S. (1980). The constituents of steam volatile oil from Brassica rapa L. var laciniitolia kitamura (studies on constituents of the genus Brassica Part I. Nippon Nogeikgaku Kaishi, 54: 865-869.

12.

Kato H. , Rhue M.R. and Nishimura T. (1989). Role of free amino acids and peptides in food taste. In: Teranishi R.T., Buttery R.G. and Shahidi F. (eds), Flavor Chemistry: Trends and Developments, Washington, DC: American Chemical Society .

13.

Kawamura Y. and Kare M. (1987). Umami: A Basic Taste. New York : Marcel Dekker.

14.

Kawakishi S. and Namiki M. (1969). Decomposition of allyl isothiocyanate in aqueous solution . Agricultural and Biological Chemistry 33: 452-459.

15.

Kojima M. , Uchida M. and Akabori Y. (1973). Studies on the volatile components of Wasabia japonica, Brassica juncea and Cocholearia armoracia by gas chromatography-mass spectrometry . I. Determination of low mass volatile components. Yakugaku Zasshi 93: 453-459.

16.

Kvalheim O.M. (1988). A partial-least-squares approach to interpretative analysis of multivariate data . Chemometrics and Intelligent Laboratory Systems 3: 189-197.

17.

Li J.Y. (1988). The Quality and Hygiene of Pickled Vegetables . Beijing: Chinese Light Industry Publishing House.

18.

Maga J.A. (1994). Umami flavor of meat. In: Shahidi F. (ed.), Flavor of Meat and Meat Products. London: Blackie Academic & Professional .

19.

Masuda H. , Harada Y. , Tanaka K. , Nakajima M. and Tabeta H. (1996). Characteristic ordorants of wasabi (Wasabia japonica Matum), Japanese horseradish, in comparison with those of horseradish (Armoracia rusticana), In: Takeoka G.R., Tenanishi R. , Williams P.J. and Kokayashi A. (eds), Biotechnology for Improved Foods and Flavors. Washington, DC : ACS Symposium Series 637.

20.

Van Doorn H.E. , van Holst G.-J. , van der Kruk G.C. , Raaijmakers-Ruijs N.C.M.E. and Postma E. (1998a). Quantitative determination of the glucosinolates sinigrin and progoitrin by specific antibody ELISA assays in Brussels sprouts . Journal of Agricultural and Food Chemistry 46: 793-800.

21.

Van Doorn H.E. , van der Kruk G.C. , van Holst G.J. , Raaijmakers-Ruijs N.C.M.E. , Postma E. , Groeneweg B. and Jongen W.H.F. (1998b). The glucosinolates sinigrin and progoitrin are important determinants for taste preferences and bitterness of Brussels sprouts . Journal of the Science of Food and Agriculture 78: 30-38.

22.

Wetter L.R. and Youngs C.G. (1976). A thiourea-UV assay for total glucosinolate content in rapeseed meals . Journal of American Oil Chemists Society 53: 162-164.

23.

Yokotsuka T. (1985). Fermented protein foods in the Orient, with emphasis on Shoyu and Miso in Japan. In: Wood B.J.B . (ed.), Microbiology of Fermented Foods. London: Elsevier Applied Science Publishers.

24.

Zhao D. , Tang J. and Ding X. ( 2007). Analysis of volatile components during potherb mustard (Brassica juncea, Coss.) pickle fermentation using SPME-GC-MS . LWT - Food Science and Technology 40: 439-447.