[국내논문]The effect of extrusion conditions on the acidic polysaccharide, ginsenoside contents and antioxidant properties of extruded Korean red ginseng원문보기
This study was conducted to investigate the effect of extrusion conditions (moisture content 20% and 30%, screw speed 200 and 250 rpm, barrel temperature $115^{\circ}C$ and $130^{\circ}C$) on the acidic polysaccharide, ginsenoside contents and antioxidant properties of extruded...
This study was conducted to investigate the effect of extrusion conditions (moisture content 20% and 30%, screw speed 200 and 250 rpm, barrel temperature $115^{\circ}C$ and $130^{\circ}C$) on the acidic polysaccharide, ginsenoside contents and antioxidant properties of extruded Korean red ginseng (KRG). Extruded KRGs showed relatively higher amounts of acidic polysaccharide (6.80% to 9.34%) than non-extruded KRG (4.34%). Increased barrel temperature and screw speed significantly increased the content of acidic polysaccharide. The major ginsenosides (Rb1, Rb2, Rc, Rd, Re, Rf, Rg2s, Rg3s, Rh1, and Rg3r) of KRG increased through extrusion, while the ginsenoside (Rg1) decreased. The EX8 (moisture 30%, screw speed 250 rpm, and temperature $130^{\circ}C$) had more total phenolics and had a better scavenging effect on 2,2-diphenyl-1-picrylhydrazyl radicals than those of extruded KRG samples. The extrusion cooking showed a significant increase (6.8% to 20.9%) in reducing power. Increased barrel temperature significantly increased the values of reducing power, the highest value was 1.152 obtained from EX4 (feed moisture 20%, screw speed 250 rpm, and temperature $130^{\circ}C$). These results suggest that extrusion conditions can be optimized to retain the health promoting compounds in KRG products.
This study was conducted to investigate the effect of extrusion conditions (moisture content 20% and 30%, screw speed 200 and 250 rpm, barrel temperature $115^{\circ}C$ and $130^{\circ}C$) on the acidic polysaccharide, ginsenoside contents and antioxidant properties of extruded Korean red ginseng (KRG). Extruded KRGs showed relatively higher amounts of acidic polysaccharide (6.80% to 9.34%) than non-extruded KRG (4.34%). Increased barrel temperature and screw speed significantly increased the content of acidic polysaccharide. The major ginsenosides (Rb1, Rb2, Rc, Rd, Re, Rf, Rg2s, Rg3s, Rh1, and Rg3r) of KRG increased through extrusion, while the ginsenoside (Rg1) decreased. The EX8 (moisture 30%, screw speed 250 rpm, and temperature $130^{\circ}C$) had more total phenolics and had a better scavenging effect on 2,2-diphenyl-1-picrylhydrazyl radicals than those of extruded KRG samples. The extrusion cooking showed a significant increase (6.8% to 20.9%) in reducing power. Increased barrel temperature significantly increased the values of reducing power, the highest value was 1.152 obtained from EX4 (feed moisture 20%, screw speed 250 rpm, and temperature $130^{\circ}C$). These results suggest that extrusion conditions can be optimized to retain the health promoting compounds in KRG products.
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문제 정의
With the increased use of twin-screw extruders in the manufacture of products by adding extruded KRG extract (powder), it is necessary to have enough data on extrusion of KRG. Therefore, the objective of the present study was to investigate the effects of extrusion conditions (feed moisture content, screw speed, and barrel temperature) on effective components and antioxidant properties of an extruded KRG.
가설 설정
2) RP value expressed as absorbance at 700 nm.
제안 방법
The injection volume was 5 μL and the absorbance was measured at 203 nm. The two mobile phases were phase A: water-formic acid (100:0.2, v/v); phase B: acetonitrile, and the UPLC elution conditions were optimized as follows: linear gradient from 5% to 15% B (0 to 5 min), 15% to 35% B (5 to 10 min), 35% to 42% B (10 to 14 min), and 42% to 80% B (14 to 20 min). The flow rate was set at 0.
1×100 mm) at column temperature of 30°C. The two mobile phases were phase A: water-formic acid (100:0.2, v/v); phase B: acetonitrile, using the following gradient program: linear gradient from 5% to 15% B (0 to 5 min), 15% to 35% B (5 to 10 min), 35% to 42% B (10 to 14 min), and 42% to 80% B (14 to 20 min). The flowrate was at 0.
In this work, the effects of variable moisture content, screw speed and barrel temperature on the acidic polysaccharide, ginsenoside contents and antioxidant properties of red ginseng powder extrudates were investigated. After extrusion, the acidic polysaccharide and total ginsenoside contents were significantly increased.
Many methods are available to evaluate the different antioxidant activities of natural compounds from plant extracts and foods. The antioxidant properties of extruded KRG in this study were tested for their total phenolic contents, DPPH radical scavenging effect and RP.
대상 데이터
The 5-year-old KRG (moisture content 9.50%, fat content 1.36%, protein content 14.57% and ash content 4.90%) was purchased in dried powder forms from the National Agricultural Cooperative Federation in Seosan, Korea.
More than 30 ginsenosides are known, the most abundant components present in ginseng are Rb1, Rb2, Rc, Rd, Re, Rf, Rg1, Rg2, Rg3, etc. In this study, the ginsenosides Rg1, Re, Rf, Rh1, Rg2(s), Rg2r, Rb1, Rc, Rb2, Rd, Rg3(s), Rg3r, and Rh2s were measured (Fig. 2). As shown in Table 1, the total ginsenoside content increased after extrusion, which means an increase of 1.
이론/모형
The hydrogen-donating or radical-scavenging of the sample solution was measured by the DPPH method proposed by Brand-Williams et al. [11].
성능/효과
The results showed that, compared with the non-extruded KRG (59.99%), the DPPH radical scavenging activities decreased (p<0.05) in EX5 and EX7 (feed moisture 30%, temperature 115℃, and screw speed 200 and 250 rpm, respectively) by 2.3% and 1.7%, respectively while the rest of the conditions did show significant (p<0.05) increase (3.9% to 19.7%).
참고문헌 (27)
1 Park CK Jeon BS Yang JW The chemical components of Korean ginseng. Food Ind Nutr 2003 8 1023 1029
2 An YE Ahn SC Yang DC Park SJ Kim BY Baik MY Chemical conversion of ginsenosides in puffed red ginseng. LWT Food Sci Technol 2011 44 370 374
3 Baek NI Kim DS Lee YH Park JD Lee CB Kim SI Ginsenoside Rh4, a genuine dammarane glycoside from Korean red ginseng. Planta Med 1996 62 86 87 8720394
4 Nam KY The comparative understanding between red ginseng and white ginsengs, processed ginsengs (Panax ginseng C. A. Meyer). J Ginseng Res 2005 29 1 18
5 Ha DC Ryu GH Chemical components of red, white and extruded root ginseng. J Korean Soc Food Sci Nutr 2005 34 247 254
6 Ha DC Lee JW Ryu GH Effect of barrel temperature and screw speed on characteristics of extruded raw ginseng. J Ginseng Res 2005 29 107 112
7 Han JY Kim MH Tie J Solihin BW Ryu GH Extrusion of ginseng root in twin screw extruder: pretreatment for hydrolysis and saccharification of ginseng extrudate. J Food Sci Nutr 2006 11 318 322
8 Ryu GH Microstructure and antioxidative activity of red, white and extruded ginseng. J Food Sci Nutr 2006 11 61 66
9 Do JH Lee HO Lee SK Jang JK Lee SD Sung HS Colorimetric determination of acidic polysaccharide from Panax ginseng, its extraction condition and stability. Korean J Ginseng Sci 1993 17 139 144
10 Norajit K Gu BJ Ryu GH Effects of the addition of hemp powder on the physicochemical properties and energy bar qualities of extruded rice. Food Chem 2011 1239 1919 1925
11 Brand-Williams W Cuvelier ME Berset C Use of a free radical method to evaluate antioxidant activity. LWT Food Sci Technol 1995 28 25 30
12 Gulcin I Oktay M Kirecci E Kufrevioglu OI Screening of antioxidant and antimicrobial activities of anise (Pimpinella anisum L.) seed extracts. Food Chem 2003 83 371 382
14 Choi KT Botanical characteristics, pharmacological effects and medicinal components of Korean Panax ginseng C A Meyer. Acta Pharmacol Sin 2008 29 1109 1118 18718180
15 Yoon SR Lee MH Park JH Lee IS Kweon JH Lee GD Changes in physicochemical compounds with heating treatment of ginseng. J Korean Soc Food Sci Nutr 2005 34 1572 1578
16 Ren G Chen F Degradation of ginsenosides in American ginseng (Panax quinquefolium) extracts during microwave and conventional heating. J Agric Food Chem 1999 47 1501 1505 10564006
17 Shih MC Kuo CC Chiang W Effects of drying and extrusion on colour, chemical composition, antioxidant activities and mitogenic response of spleen lymphocytes of sweet potatoes. Food Chem 2009 117 114 121
18 Zielinski H Kozlowska H Lewczuk B Bioactive compounds in the cereal grains before and after hydrothermal processing. Innov Food Sci Emerg Technol 2001 2 159 169
19 Anton AA Fulcher RG Arntfield SD Physical and nutritional impact of fortification of corn starch-based extruded snacks with common bean (Phaseolus vulgaris I.) flour: effects of bean addition and extrusion cooking. Food Chem 2009 113 989 996
20 Sharma P Gujral HS Effect of sand roasting and microwave cooking on antioxidant activity of barley. Food Res Int 2011 44 235 240
21 Manzocco L Calligaris S Masrocola D Nicoli MC Lerici CR Review of non-enzymatic browning and antioxidant capacity in processed foods. Trends Food Sci Technol 2000 11 340 346
23 Miller HE Rigelhof F Marquart L Prakash A Kanter M Antioxidant content of whole grain breakfast cereals, fruits and vegetables. J Am Coll Nutr 2000 19 3 Suppl 312S 319S 10875603
24 Delgado-Licon E Ayala AL Rocha-Guzman NE Gallegos-Infante JA Atienzo-Lazos M Drzewiecki J Martinez-Sanchez CE Gorinstein S Influence of extrusion on the bioactive compounds and the antioxidant capacity of the bean/corn mixtures. Int J Food Sci Nutr 2009 60 522 532 18608556
25 Oomah BD Cardador-Martinez A Loarca-Pina G Phenolics and antioxidative activities in common beans (Phaseolus vulgaris L). J Sci Food Agric 2005 85 935 942
26 Gujral HS Sharma P Rachna S Effect of sand roasting on the beta glucan extractability, physicochemical and antioxidant properties of oats. LWT Food Sci Technol 2011 44 2223 2230
27 Rufian-Henares JA Delgado-Andrade C Effect of digestive process on Maillard reaction indexes and antioxidant properties of breakfast cereals. Food Res Int 2009 42 394 400
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