도정도가 흑미밥의 기계적 및 관능적 조직감 특성에 미치는 영향 = Effects of Milling Degree on Instrumental and Sensory Texture Properties of Cooked Black Rice

다국어 초록 (Multilingual Abstract)

Purpose: The objective of this study was to evaluate the effects of milling degree on the instrumental and sensory textural properties of cooked black rice. Methods: Commonly consumed black glutinous rice cultivars (Sinnongheugchal and Heukhyangchal 1) and black non-glutinous rice cultivars (Heugjinju and Sintoheugmi) were milled into three different degrees of milling (step 0, 0%; step 1, 4.2%; step 2, 10.5%, w/w), based on the weight percentage of rice layers removed by milling. The effect of milling degree on texture properties of cooked black rice was determined. The texture of the cooked white glutinous rice cultivar (Dongjinchal) was compared with the texture of cooked black glutinous rice cultivars. Instrumental textural properties and descriptive sensory analysis of cooked rice samples were performed. The correlation between instrumental and sensory textural properties of cooked black rice was examined. Results: Among the black non-glutinous rice cultivars, cooked black rice of Heugjinju milled to step 0 showed a significantly higher hardness level than Sintoheugmi milled to step 0 (p<0.05). Cooked black rice cultivars of Sinnongheugchal and Heukhyangchal 1 milled to step 2 produced similar adhesiveness/hardness to Dongjinchal milled to step 2. Milling degree was found to affect all instrumental and sensory textural properties of cooked rice, regardless of black rice cultivars (p<0.01), whereas cultivar was found to affect only limited textural attributes. While hardness measured by instrumental analysis showed significant positive correlations with sensory hardness, chewiness, and roughness properties, it showed negative correlations with sensory springiness, stickiness, and moistness (p<0.05). Conclusion: In conclusion, changes in milling degree of some black rice cultivars improved textural properties, similar to the non-pigmented rice cultivar Dongjinchal.

참고문헌 (Reference)

1 공수현, "흑미의 도정분획 메탄올 추출물의 항산화 성분 및 항산화 효과" 한국식품영양과학회 37 (37): 815-819, 2008

2 오금순, "찰흑미와 찰벼를 첨가한 혼합밥의 텍스쳐" 한국식품과학회 34 (34): 213-219, 2002

3 이점식, "쌀 도정도에 따른 식미의 품종간 차이" 한국작물학회 59 (59): 47-53, 2014

4 최원석, "기기적 측정조건을 달리하여 측정한 쌀밥의 조직감 특성 변화" 한국식품과학회 48 (48): 521-524, 2016

5 Okabe M, "Texture measurement of cooked rice and its relationship to the eating quality" 10 (10): 131-152, 1979

6 Bhat FM, "Physicochemical, cooking, and textural characteristics of grains of different rice(Oryza sativa L. )cultivars of temperate region of India and their interrelationships" 48 (48): 160-170, 2017

7 Statistics Korea, "Korea grain consumption"

8 Meullenet JF, "Instrumental assessment of cooked rice texture characteristics : A method for breeders" 77 (77): 512-517, 2000

9 Hiemori M, "Influence of cooking on anthocyanins in black rice(Oryza sativa L. japonica var. SBR)" 57 (57): 1908-1914, 2009

10 Samyor D, "Evaluation of physical, thermal, pasting characteristics and mineral profile of pigmented and nonpigmented rice cultivars" 40 (40): 174-182, 2016

11 Lyon BG, "Effects of degree of milling, drying condition, and final moisture content on sensory texture of cooked rice" 76 (76): 56-62, 1999

12 Marshall WE, "Effect of degree of milling of brown rice and particle size of milled rice on starch gelatinization" 69 (69): 632-636, 1992

13 Goodwin HL, "Developing a common language for the U. S. rice industry: Linkages among breeders, producers, processors, and consumers" Texas A & M University 46-, 1996

14 Mohapatra D, "Cooking quality and instrumental textural attributes of cooked rice for different milling fractions" 73 (73): 253-259, 2006

15 Kim DW, "Cooking conditions and textural changes of cooked rice added with black rice" 30 (30): 562-568, 1998

16 Chen XQ, "Anti-oxidative analysis, and identification and quantification of anthocyanin pigments in different coloured rice" 135 (135): 2783-2788, 2012