Optimization of thermal processing conditions for brown rice noodles

다국어 초록 (Multilingual Abstract)

Based on the current thermal processing conditions for rice noodles (80–85 °C for 20–30 min), we used response surface methodology to find brown rice (BR) noodle processing conditions that maximize the noodles antioxidant activity, digestibility, and gelatinization. The experiments were designed according to the central composite design, including two independent variables (temperature and time) and six dependent variables [total phenolic contents (TPC), total flavonoid contents (TFC), 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2′-azino-bis (3-ethylbenzthiazoline-6-sulfonic acid) diammonium salt (ABTS) radical scavenging activities, digestibility, and gelatinization]. Antioxidant activities decreased but digestibility and gelatinization increased with increasing temperature and time. All dependent variables suggested a quadratic model except TFC, but the probability of TPC was not applicable (0.1505), and DPPH radical scavenging activity showed a relatively low R2 (0.6750). Therefore, we applied the other three dependent variables (ABTS radical scavenging activity, digestibility, and gelatinization) to the 3D response surface and proposed three optimum conditions: (1) for antioxidant activity (70 °C, 22.95 min), (2) for digestibility and gelatinization (88.18 °C, 34.89 min), and (3) for all three variables (88.5 °C, 40 min). In a validation test, all dependent variables showed values within a 5 % error range except TFC. These results show the optimum processing conditions for BR noodles to maximize antioxidant activity and provide sustainability in BR noodle processing.

참고문헌 (Reference)

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

2 김소윤, "호화과정이 백미, 현미, 발아현미의 항산화 및 항유전 독성 활성에 미치는 영향" 한국식품영양과학회 42 (42): 1370-1377, 2013

3 우관식, "전처리조건에 따른 망초(Erigeron canadensis L.) 에탄올 추출물의 항산화활성" 한국식품영양과학회 38 (38): 1279-1283, 2009

4 우관식, "열처리한 감초추출물의 항산화활성" 한국식품과학회 38 (38): 355-360, 2006

5 곽지은, "열처리 온도에 따른 현미 에탄올 추출물의 항산화 성분 및 활성 변화" 한국식품영양과학회 42 (42): 534-541, 2013

6 유정식, "덖음 횟수에 따른 감국(Chrysanthemum indicum L.) 꽃차의 품질 특성" 한국식품영양과학회 37 (37): 647-652, 2008

7 Anderson JW, "Whole grains protect against atherosclerotic cardiovascular disease" 62 : 135-142, 2003

8 Brand-Williams W, "Use of a free radical method to evaluate antioxidant activity" 28 : 25-30, 1995

9 Xu B, "Total phenolic, phenolic acid, anthocyanin, flavan-3-ol, and flavonol profiles and antioxidant properties of pinto and black beans (Phaseolus vulgaris L.) as affected by thermal processing" 57 : 4754-4764, 2009

10 Zhishen J, "The determination of flavonoid contents in mulberry and their scavenging effects on superoxide radicals" 64 : 555-559, 1999

11 Hu P, "Starch digestibility and the estimated glycemic score of different types of rice differing in amylose contents" 40 : 231-237, 2004

12 Kyung-Tae Pih, "Pectinase 처리 전후의 현미의 물리적 변화 분석" 한국생명과학회 24 (24): 554-559, 2013

13 Moon C, "Optimization of medium compositions favoring butanol and 1, 3-propanediol production from glycerol by Clostridium pasteurianum" 102 : 10561-10568, 2012

14 Kim I, "Optimization of alkaline pretreatment conditions for enhancing glucose yield of rice straw by response surface methodology" 46 : 210-217, 2012

15 이아람, "Optimization of Ultra High Pressure Extraction (UHPE) Condition for Puffed Ginseng Using Response Surface Methodology" 한국식품과학회 23 (23): 1151-1157, 2014

16 진종현, "Optimization of Hot Water Extraction and Ultra High Pressure Extraction for Deer Antler" 한국식품과학회 24 (24): 507-512, 2015

17 Alberti A, "Optimisation of the extraction of phenolic compounds from apples using response surface methodology" 149 : 151-158, 2014

18 Ilaiyaraja N, "Optimisation of extraction of bioactive compounds from Feronia limonia (wood apple) fruit using response surface methodology (RSM)" 173 : 348-354, 2015

19 Karacabey E, "Optimisation of antioxidant activity of grape cane extracts using response surface methodology" 119 : 343-348, 2010

20 Zhang Y, "Extraction optimization by response surface methodology, purification and principal antioxidant metabolites of red pigments extracted from bayberry (Myrica rubra) pomace" 51 : 343-347, 2013

21 Sharma P, "Effect of sand roasting and microwave cooking on antioxidant activity of barley" 44 : 235-240, 2011

22 Karvela E, "Deployment of response surface methodology to optimize recovery of grape (Vitis vinifera) stem and seed polyphenols" 1 : 1686-1693, 2011

23 Singleton V, "Colorimetry of total phenolics with phosphomolybdic-phosphotungstic acid reagents" 16 : 144-158, 1965

24 Ryu K, "Color changes and optimization of organoleptic properties of roasted Polygonatum odoratum tea" 26 : 831-837, 1997

25 Ha TY, "Changes in nutraceutical lipid components of rice at different degrees of milling" 108 : 175-181, 2006

26 Hong M-J, "Changes in functional and sensory properties of chicory roots induced by roasting processes" 30 : 413-418, 1998

27 Zielinski H, "Bioactive compounds in the cereal grains before and after hydrothermal processing" 2 : 159-169, 2001

28 van den Berg R, "Applicability of an improved Trolox equivalent antioxidant capacity (TEAC) assay for evaluation of antioxidant capacity measurements of mixtures" 66 : 511-517, 1999

29 Cao G, "Antioxidant and prooxidant behavior of flavonoids: structure–activity relationships" 22 : 749-760, 1997

30 Adom KK, "Antioxidant activity of grains" 50 : 6182-6187, 2002

31 Leegwater D, "A study on the in vitro digestibility of hydroxypropyl starches by pancreatin" 23 : 430-432, 1971