Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Changes in Flavor Compounds of Polygonatum odoratum Root during Roasting

볶음처리에 따른 둥굴레 근경의 향기성분 변화

  • Published : 2007.02.28
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Abstract

In order to evaluate innate flavor during the roasting process, the components responsible for the aroma of unroasted Polygonatum odoratum root and the volatile odor components released during the roasting process were evaluated using the solid phase-microextraction (SPME) headspace method. The raw P. odoratum root contained aldehyde, alcohol, hydrocarbon and acid components, which gave it a grass-like smell. 2-Methylpyrazine was not revealed from the roasted P. odoratum root at $110^{\circ}C$ and $130^{\circ}C$, but was extracted at $150^{\circ}C$. The 2,5-dimethylpyrazine component was the greatest at $130^{\circ}C$. The hexanal component was greater when the root was roasted at $110^{\circ}C$, compared with those at $130^{\circ}C$ and $150^{\circ}C$. The production of 2-acetyl-1-pyrroline component was the greatest when it was roasted at $130^{\circ}C$. Quantitative descriptive analysis of P. odoratum after roasting revealed a high concentration of 2,5-dimethylpyrazine at $130^{\circ}C$ and $150^{\circ}C$, but a low concentration at $110^{\circ}C$. Most of the 2-acetyl-1-pyrroline, which significantly affected its smell, was revealed at $130^{\circ}C$.

볶음공정을 거치는 둥굴레의 고유한 향미 생성과정의 연구의 일환으로 볶음처리 하지 않았을 때의 고유한 향기성분과 볶음과정의 휘발성 향기성분을 SPME headspace 방법에 의해 분석하였다. 볶음처리하지 않은 둥굴레 근경은 aldehyde, alcohol, hydrocarbon과 acid류가 많이 나타났으며 향기특성은 전반적으로 풋내가 나타났다. 볶음 처리한 둥굴레는 2-methylpyrazine이 110와 $130^{\circ}C$에서는 발현되지 않았으며 $150^{\circ}C$에서 발현되었으며 2,5-dimethylpyrazine은 $130^{\circ}C$에서 가장 함량이 높은 것으로 나타났다. Hexanal은 $110^{\circ}C$에서 볶음 처리한 경우 130와 $150^{\circ}C$에서 볶음 처리한 경우보다 높게 나타났고, 2-acetyl-1-pyrroline은 $130^{\circ}C$에서 가장 높게 나타났다. 둥굴레를 볶음처리 한 후 주요 정량적 묘사 시험방법에서 2,5-dimethylpyrazine은 130와 $150^{\circ}C$에서 높은 값을 나타내었고 $110^{\circ}C$에서는 낮게 나타났다. $130^{\circ}C$에서 가장 높게 나타난 2-acetyl-1-pyrroline은 미량으로도 향기발현에 큰 영향을 미치는 것으로 나타났다.

Keywords

References

  1. Kim TJ. Wild grass of Korea. Gukil munwhasa Co., Seoul, Korea. pp. 190(1994)
  2. Rural Development Administration National Crop Experiment Station. Classification of Korean medicinal plant resources, Korea. pp. 243-244(1990)
  3. Klein R, Klein BE, Moss SE, Davis MD, DeMets DL. Retinoparthy in young-onset diabetic patients. Diabetes Care 8: 311-315 (1985) https://doi.org/10.2337/diacare.8.4.311
  4. Lim SJ, Kim KK. Hypoglycemic effect of Polygonatum odoratum var. Pluriflorum ohwi extract in streptozotocin-induced diabetic rats. Korean J. Nutr. 28: 727-739(1995)
  5. Kim JK, Lee YJ. Pharmacognostical studies on the rhizome of Polygonatum robustum nakai. Korean J. Pharmacog. 11: 69-74 (1980)
  6. Kim KH. Volatile flavor components and formation model system of dunggule (Polygonatum sp.) tea and chicory (Cichicorium intybus L.) tea. MS thesis, Dongeui University, Busan, Korea (1998)
  7. Cha WS. Physico-chemical properties of Polygonatum starch. MS thesis, Chosun University, Gwangju, Korea(1980)
  8. Ryu KC, Chung HW, Kim KT, Kwon JH. Optimization of roasting conditions for high-quality Polygonatum odoratum tea. Korean J. Food Sci. Technol. 29: 776-783 (1997)
  9. Rohan TA, Stewart T. The precursors of chocolate aroma, changes in the sugars during the roasting of cocoa beans. J. Food Sci. 31: 206-209 (1966)
  10. Seog HM. The effects of the roasting temperature on the formation of volatile compounds in the malted naked barley. PhD thesis, Chung-Ang University, Seoul, Korea (1987)
  11. Arnold A, Arnoldi C, Bald O, Griffini A. Flavor components in the Maillard reaction of different amino acids with fructose in cocoa butter-water. Qualitative and quantitative analysis of pyrazines. J. Agr. Food Chem. 36: 988-992 (1988) https://doi.org/10.1021/jf00083a021
  12. Lee GD, Jeong YJ, Park NY, Kwon JH. Monitoring for the color formation of a Doraji tea by soaking of threonine and sucrose solution and roasting. Korean J. Food Sci. Technol. 31: 938-944 (1999)
  13. Park NY, Seo JH, Kim YH, Kwon JH. Comparison of flavor compounds in steamed- and nonsteamed-roasted Polygonatum odoratum roots by solid-phase microextraction. Korean J. Food Sci. Technol. 32: 507-512 (2000)
  14. Penton Z. Flavor volatiles in a fruit beverage with automated SPME. Food Test. Anal. 2: 16-18 (1996)
  15. Quach ML, Chen XD, Stevenson RJ. Headspace sampling of whey protein concentrate solutions using solid-phase microextraction. Food Res. Int. 31: 371-379 (1999) https://doi.org/10.1016/S0963-9969(98)00098-2
  16. Wiley/National Bureau of Standards (NBS). Registry of mass spectral data. Wiley Science, New York, NY, USA (1989)
  17. Elmore JS, Mottram DS, Enser M, Wood JD. Effect of the polyunsaturated fatty acid composition of beer muscle on the profile of aroma volatiles. J. Agr. Food Chem. 47: 1619-1625 (1999) https://doi.org/10.1021/jf980718m
  18. Kim WJ, Sung HS. Effect of temperature and sugar addition on the flavor of ginseng tea. Korean J. Food Sci. Technol. 17: 304-310 (1985)
  19. Kato H, Ohta T, Tsugita T, Hosaka Y. Effect of parboiling on texture and flavor components of cooked rice. J. Agr. Food Chem. 31: 818-823 (1983) https://doi.org/10.1021/jf00118a035
  20. Yoon HN. Sensory characterization of roasted sesame seed oils using gas chromatographic data. Korean J. Food Sci. Technol. 28: 298-304 (1996)
  21. Schieberle P. Formation of furaneol in heat-processed foods. pp. 164-174 In: Flavor precusors. Thermal and enzymatic conversions: Teranishi R, Takeoka G, Guntert M. (ed). ACS symposium series 490: American Chemical Society. Washington DC, USA (1992)
  22. Buttery RG, Stem DJ, Ling LC. Studies on flavor volatiles of some sweet corn products. J. Agr. Food Chem. 42: 791-795 (1994) https://doi.org/10.1021/jf00039a038
  23. Lee JC, Kim YH. Comparison of volatile flavor components of Korean aromatic rice and nonaromatic rice. J. Korean Soc. Food Sci. Nutr. 28: 299-304 (1999)