수확시의 숙도에 따른 저온저장 중 토마토의 품질인자의 변화
Changes in Quality Parameters of Tomatoes Harvested at Different Mature Stages during Storage
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초록
본 연구에서는 수확시 숙성 정도가 토마토의 저장 중 품질변화에 미치는 영향을 구명하고자 하였다. 그린하우스에서 재배된 ‘Rafito' 품종을 각각 turning, pink, red 단계에 수확한 후 30 μm PE 필름으로 포장한 후 5℃와 10℃에 두어 1주일 간격으로 경도, 가용성 고형분 함량, 적정산도, 색, 라이코펜 함량, 부패율, 저온장해율을 조사하였다. 저장 3주 이후에 5℃에서는 저온장해가 10℃에서는 부패가 높게 발생되었다. 5℃에서는 수확 후 품질변화가 거의 없으므로 완숙과인 red 토마토의 품질 유지에 적합하였나, turning과 pink 토마토는 수확후 숙성과정이 억제되어 저장 2주 후에도 미숙한 상태에 머물렀다. Turning과 pink 토마토를 수확 후 10℃에 저장하면 수확기에 비해 품질이 향상되었다. 특히, turning 토마토는 10℃에 2주간 저장할 경우 연화는 억제되어 경도가 높게 유지되면서도, 착색이 완성되고 SSC/TA가 증가하며 라이코펜 함량이 완숙과 수준으로 증가되어 내·외부 품질이 가장 우수하였다. 따라서 red 단계에서 수확된 ‘Rafito’ 토마토의 경우 부패를 억제할 수 있는 5℃ 저장이 바람직하며, red 단계보다 미숙한 상태에서 수확할 경우 저온에서는 후숙에 의한 품질형성이 억제되므로 10℃가 적정 온도인 것으로 판단된다.
Abstract
This study was conducted to investigate the effect of mature stages on quality of Rafito tomatoes (Lycopersicon esculentum Mill.) during storage at low temperature. Tomatoes grown in greenhouse were harvested at three different mature stages (turning, pink, and red), packaged with a 30-μm-thick polyethylene film, and then stored at 5 and 10℃, respectively. The changes in firmness, soluble solids content (SSC), titratable acidity (TA), colour, lycopene content, decay, and chilling injury were measured on a weekly basis. After three weeks of storage, chilling injury and decay were found to have individually occurred at 5 and 10℃, respectively. As there was little change in quality at 5℃, it was concluded that red tomatoes could maintain their good quality for two weeks. The normal postharvest ripening was inhibited in the turning and pink tomatoes during storage at 5℃. The turning and pink tomatoes showed improved quality after two-week storage at 10℃. In particular, the turning fruits showed the highest firmness throughout the storage period. Furthermore, the red colour, SSC/TA, and lycopene content of the turning fruits reached the same levels as with the red fruits after two-week storage at 10℃. These results suggest that red tomatoes should be stored at 5℃ to inhibit decay, and that the optimum temperature for early-harvested tomato (turning and pink) is 10℃ for the ripening process after harvest.
참고문헌 (21)
- Khachik F, "Chemistry, distribution, and metabolism of tomato carotenoids and their impact on human health", Expt Biol Med, 227, pp.845~851 (2002)
- Abushita AA, "Determination of antioxidant vitamins in tomatoes", Food Chem, 60, pp.207~212 (1997)
- Carrari F, "Integrated analysis of metabolite and transcript levels reveals the metabolic shifts that underlie tomato fruit development and highlight regulatory aspects of metabolic network behavior", Plant Physiol, 142, pp.1380~1396 (2006)
- Giovanelli G, "Variation in antioxidant components of tomato during vine and post-harvest ripening", J Sci Food Agr, 79, pp.1583~1588 (1999)
- Cano A, "Hydrophilic and lipophilic antioxidant activity changes during on-vine ripening of tomatoes (Lycopersicon esculentum Mill.)", Postharvest Biol Technol, 28, pp.59~65 (2003)
- Cantwell M, "Optimum procedures for ripening tomatoes. In: Management of Fruit Ripening, 9th ed" (2000), University of California
- Balibrea ME, "The high fruit soluble sugar content in wild Lycopersicon species and their hybrids with cultivars depends on sucrose import during ripening rather than on sucrose metabolism", Funct Plant Biol, 33, pp.279~288 (2006)
- Malundo TMM, "Flavor quality of fresh tomato (Lycopersicon esculentum Mill.) as affected by sugar and acid levels", Postharvest Biol Technol, 6, pp.103~110 (1995)
- Schuch W, "Improving tomato fruit quality using bioscience", Acta Hort, 376, pp.75~80 (1994)
- Tandon KS, "Linking sensory descriptors to volatile and nonvolatile components of fresh tomato flavor", J Food Sci, 68, pp.2366~2371 (2003)
- Ahumada M, "Postharvest studies on pepinodulce (Solanum muricatum): maturity at harvest and storage behavior", Postharvest Biol Technol, 81, pp.129~136 (1996)
- Beaulieu JC, "USDA Handbook 66, In Fresh-cut fruits. In: The Commercial Storage of Fruits, Vegetables, and Florist and Nursery Stocks, USDA Handbook 66" (2001), USDA
- Getinet H, "The effect of cultivar, maturity stage and storage environment on quality of tomatoes", J Food Eng, 87, pp.467~478 (2008)
- Maul E, "Tomato flavor and aroma quality as affected by storage temperature", J Food Sci, 65, pp.1228~1237 (2000)
- Pinheiro J, "Kinetics of changes in the physical quality parameters of fresh tomato fruits (Solanum lycopersicum, cv. ‘Zinac’) during storage", J Food Eng, 114, pp.338~345 (2013)
- United States Standards for Grades of Fresh Tomatoes, "USDA", USDA, Agricultural Marketing Service, ~ (1991)
- Vu TS, "Effect of preheating on thermal degradation kinetics of carrot texture", Innov Food Sci Emerg Technol, 5, pp.37~44 (2004)
- Stevens C, "Involvement of pectin methyl-esterase during the ripening of grape berries: partial cDNA isolation, transcript expression and changes in the degree of methyl-esterification of cell wall pectins", Phytochem, 58, pp.693~701 (2001)
- Beckles DM, "Factors affecting the postharvest soluble solids and sugar content of tomato (Solanum lycopersicum L.) fruit", Postharvest Biol Technol, 63, pp.129~140 (2012)
- de Leon-Sanchez FD, "Effect of refrigerated storage on aroma and alcohol dehydrogenase activity in tomato fruit", Postharvest Biol Technol, 54, pp.93~100 (2009)
- Toor RK, "Changes in major antioxidant components of tomatoes during post-harvest storage", Food Chem, 99, pp.724~727 (2006)