타임 추출물 처리가 신선편이 양상추의 저장 중 품질변화에 미치는 효과
Effect of thyme extract on quality characteristics of fresh-cut lettuce during storage
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The purpose of this study was to evaluate the quality of fresh-cut lettuce after a washing treatment with aqueous thyme extracts of differing concentration. Four different concentrations of thyme extract were employed: 0.001% (w/v, TEA), 0.005% (w/v, TEB), 0.01% (w/v, TEC), 0.05% (w/v, TED), while distilled water was used as a control. Measurements of O2 concentration, CO2 concentration, total aerobic bacteria, CIE L*, a*, b*, browning index, total phenolic contents and enzymatic activities were investigated on day 0, 1, 3, 5, and 7 at 10℃. The O2 concentration in TEB were higher than those in other samples during storage, and the CO2 concentration in TEB and TEC were significantly lower than in other samples on day 7. There was no significant difference in the total aerobic bacteria counts between treatments (p<0.05). The samples treated with TEB and TEC showed higher L* (lightness) values, but lower browning indexes, total phenolic compound levels, and enzymatic activities (polyphenol oxidase, peroxidase) than other samples during storage. Specifically, on day 7, the browning index of Cont reached 0.25, while those in the TEB and TEC were about 0.15. The L* in Cont decreased from 69.50 to 58.92, while TEB and TEC were values of 65.61 and 63.20, respectively. These results reveal that 0.005-0.01% thyme extract was effective as a washing treatment inhibited the browning of fresh-cut lettuce and is thus expected to be a useful natural extract for maintaining the quality of fresh-cut lettuce.
Abstract
The purpose of this study was to evaluate the quality of fresh-cut lettuce after a washing treatment with aqueous thyme extracts of differing concentration. Four different concentrations of thyme extract were employed: 0.001% (w/v, TEA), 0.005% (w/v, TEB), 0.01% (w/v, TEC), 0.05% (w/v, TED), while distilled water was used as a control. Measurements of O2 concentration, CO2 concentration, total aerobic bacteria, CIE L*, a*, b*, browning index, total phenolic contents and enzymatic activities were investigated on day 0, 1, 3, 5, and 7 at 10℃. The O2 concentration in TEB were higher than those in other samples during storage, and the CO2 concentration in TEB and TEC were significantly lower than in other samples on day 7. There was no significant difference in the total aerobic bacteria counts between treatments (p<0.05). The samples treated with TEB and TEC showed higher L* (lightness) values, but lower browning indexes, total phenolic compound levels, and enzymatic activities (polyphenol oxidase, peroxidase) than other samples during storage. Specifically, on day 7, the browning index of Cont reached 0.25, while those in the TEB and TEC were about 0.15. The L* in Cont decreased from 69.50 to 58.92, while TEB and TEC were values of 65.61 and 63.20, respectively. These results reveal that 0.005-0.01% thyme extract was effective as a washing treatment inhibited the browning of fresh-cut lettuce and is thus expected to be a useful natural extract for maintaining the quality of fresh-cut lettuce.
참고문헌 (32)
- Klein BP, "Nutritional consequences of minimal processing of fruits and vegetables", J Food Qual, 10, pp.179~193 (1987)[DOI]
- Kim MJ, "Nutritional value, bioactive compounds and health benefits of lettuce (Lactuca sativa L.)", J Food Compos Anal, 49, pp.19~34 (2016)[DOI]
- Mo CY, "On-line fresh-cut lettuce quality measurement system using hyperspectral imaging", Biosyst Eng, 156, pp.38~50 (2017)[DOI]
- Sun Y, "Hydrogen sulfide inhibits enzymatic browning of fresh-cut lotus root slices by regulating phenolic metabolism", Food Chem, 177, pp.376~381 (2015)[DOI]
- Gil MI, "Fresh-cut product sanitation and wash water disinfection: Problems and solutions", Int J Food Microbiol, 134, pp.37~45 (2009)[DOI]
- Wang H, "Microbial reduction and storage quality of fresh-cut cilantro washed with acidic electrolyzed water and aqueous ozone", Food Res Int, 37, pp.949~956 (2004)[DOI]
- Economou KD, "Antioxidant activity of some plant extracts of the family Labiatae", J Am Oil Chem Soc, 68, pp.109~113 (1991)[DOI]
- Stojanovic R, "Encapsulation of thyme (Thymus serpyllum L.) aqueous extract in calcium alginate beads", J Sci Food Agric, 92, pp.685~696 (2012)[DOI]
- Perdones A, "Properties of film-forming dispersions and films based on chitosan containing basil or thyme essential oil", Food Hydrocolloids, 57, pp.271~279 (2016)[DOI]
- Cui H, "Enhancing the antibacterial activity of thyme oil against Salmonella on eggshell by plasma-assisted process", Food Control, 70, pp.183~190 (2016)[DOI]
- Nickons AB, "Effect of dietary thyme n the oxidative stability of egg yolk", J Agric Food Chem, 45, pp.3711~3716 (1997)[DOI]
- Krause EL, "Bioavailability of the antioxidative thyme compounds thymol and <TEX>${\rho}$<", TEX>-cymene-2, 3-diol in eggs, 1999, pp.209, 140~144
- Amarowicz R, "Antioxidant activity and free radical-scavenging capacity of ethanolic extracts of thyme, oregano, and marjoram", Eur J Lipid Sci Technol, 111, pp.1111~1117 (2009)[DOI]
- Dolea D, "Effect of thyme and oregano essential oils on the shelf life of salmon and seaweed burgers", Food Sci Technol Int, 24, pp.394~403 (2018)[DOI]
- Khouya T, "Anti-inflammatory, anticoagulant and antioxidant effects of aqueous extracts from Moroccan thyme varieties", Asian Pac J Trop Biomed, 5, pp.636~644 (2015)[DOI]
- 정주연, "가스충전 포장에 따른 신선편이 결구상추의 갈변 및 품질 특성", 원예과학기술지, 26(4), pp.406~412 (2008), 한국원예학회
- Singleton VL, "Analysis of total phenols and other oxidation substrates and antioxidants by means of folin-ciocalteu reagent", Methods Enzymol, 299, pp.152~178 (1999)
- Rico, "Effect of azone and calcium lactate treatments on browning and texture properties of fresh-cut lettuce", J Sci Food Agric, 86, pp.2179~2188 (2006)[DOI]
- Yang Z, "Effect of high oxygen atmosphere storage on quality, antioxidant enzymes, and DPPH radical scavenging activity of Chinese bayberry fruit", J Agric Food Chem, 57, pp.176~181 (2009)[DOI]
- "Ministry of Food and Drug Safety"[URL]
- 김도희, "Phytoncide 처리가 신선편이 양상추의 저장 중 이화학적, 미생물학적 및 관능적 특성에 미치는 영향", Food Science and Preservation, 20(2), pp.166~172 (2013), 한국식품저장유통학회
- 김지강, "Delayed MA 포장이 Fresh-cut 결구상추의 품질에 미치는 영향", 원예과학기술지, 23(2), pp.140~145 (2005), 한국원예학회
- Lopez-Galvez G, "The visual quality of minimally processed lettuce stored in air or controlled atmospheres with emphasis on romaine and iceberg types", Postharvest Biol Technol, 8, pp.179~190 (1996)[DOI]
- Lana MM, "Effect of cutting and maturity on antioxidant activity of fresh-cut tomatoes", Food Chem, 97, pp.203~211 (2006)[DOI]
- Ke D, "Wound-induced ethylene production, phenolic metabolism and susceptibility to russet spotting in iceberg lettuce", Physiol Plant, 76, pp.412~418 (1989)[DOI]
- Kang HM, "Antioxidant capacity of lettuce leaf tissue increases after wounding", J Agric Food Chem, 50, pp.7536~7541 (2002)[DOI]
- Rico D, "Extending and measuring the quality of fresh-cut fruit and vegetables: a review", Trends Food Sci Technol, 18, pp.373~386 (2007)[DOI]
- 류정모, "천연 추출물을 이용한 최소가공 양송이버섯 (Agaricus bisporus Sing)의 갈변저해 및 저장 중 품질특성", Food Science and Preservation, 10(1), pp.11~15 (2003), 한국식품저장유통학회
- 김도희, "반응표면분석법으로 최적화한 초음파와 저온 블랜칭의 병용처리 조건이 신선편이 양상추의 갈변과 품질에 미치는 영향", Food Science and Preservation, 19(4), pp.470~476 (2012), 한국식품저장유통학회
- Bagamboula CF, "Inhibitory effect of thyme and basil essential oils, carvacrol, thymol, estragol, linalool and p-cymene towards Shigella sonnei and S. flexneri", Food Microbiol, 21, pp.33~42 (2004)[DOI]
- Singh N, "Efficacy of chlorine dioxide, ozone, and thyme essential oil or a sequential washing in killing Escherichia coli O157:H7 on lettuce and baby carrots", LWT-Food Sci Technol, 35, pp.720~729 (2002)[DOI]
- Koseki S, "Effect of nitrogen gas packaging on the quality and microbial growth of fresh-cut vegetables under low temperatures", J Food Protect, 65, pp.326~332 (2002)[DOI]