نوع مقاله : علمی - پژوهشی

نویسندگان

1 استادیار، گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه ارومیه، ارومیه، ایران

2 دانشجوی کارشناسی ارشد میوه‌کاری، گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه ارومیه، ارومیه، ایران

چکیده

به منظور حفظ کیفیت و افزایش عمر انبارمانی میوه‌های گیلاس رقم «تک دانه مشهد» تیمار گاما آمینو بوتیریک اسید (گابا) در چهار غلظت (صفر، 5، 10 و 20 میلی‌مولار) روی میوه اعمال و میوه‌ها در دو زمان، 15 و 30 روز بعد از انبارداری نمونه‌برداری و پارامترهای مورد‌نظر اندازه‌گیری شدند. این پژوهش به‌صورت آزمایش فاکتوریل در قالب طرح کاملاً تصادفی با چهار تکرار انجام شد. صفات مختلفی از قبیل اسیدیته قابل تیتراسیون (TA)، مقدار مواد جامد محلول (TSSpH، ظرفیت آنتی‌اکسیدان کل، مقدار فنل کل، فلاوونوئید کل، فعالیت آنزیم‌های کاتالاز و گایاکول پراکسیداز مورد ارزیابی قرار گرفتند. نتایج نشان داد که با محلول‌پاشی گابا مقدار اسیدهای قابل تیتراسیون حفظ شد. تیمار گابا منجر به افزایش فعالیت آنتی‌اکسیدان کل، فنل کل، فلاوونوئید کل و فعالیت آنزیم‌های کاتالاز و گایاکول پراکسیداز در میوه‌های تیمار‌شده نسبت به میوه‌های شاهد بعد از 30 روز انبارداری شد. در حالی‌که مقدارpH  در میوه‌های تیمار‌شده نسبت به میوه‌های تیمار‌نشده در طول انبارداری کاهش یافت. بنابراین غلظت‌های مختلف تیمار گاما آمینو بوتیریک اسید با توجه به تأثیر بر صفات مطلوب برای افزایش کیفیت پس از برداشت میوه گیلاس رقم «تک دانه مشهد» پیشنهاد می‌گردد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Effect of postharvest treatment of gamma-amino butyric acid on some biochemical and antioxidant properties of sweet cherry cv. Tak Daneyeh Mashhad

نویسندگان [English]

  • H. Hassanpour 1
  • A. Bisti 2
  • S. Nojavan 2

1 Assistant Professor, Department of Horticulture, Faculty of Agriculture, Urmia University, Urmia, Iran

2 M.Sc. Student of Pomology, Department of Horticulture, Faculty of Agriculture, Urmia University, Urmia, Iran

چکیده [English]

Abstract
Background and Objectives
Sweet cherry fruit due to high water content and respiration rate is rotten in post-harvest period and hence has a short storage life. So, reducing of respiration rate and delaying of senescence process are required for increasing of storage life. Gamma amino butyric acid (GABA) is a non-protein amino acid with low content in the cell in normal state. No study has taken into account the effect of GABA on the storage life of sweet cherry fruit and also, increasing of shelf life by natural compounds seems essential to maintain the quality. Therefore, this study was conducted with the aim of improving the post-harvest quality of sweet cherry fruit, increasing biochemical and antioxidant properties and improving fruit appearance using GABA with the purpose of replacing it with synthetic chemicals.
Materials and Methods
Fruits of sweet cherry cv. Tak Daneyeh Mashhad were harvested at commercial maturity from a commercial orchard in Urmia (Iran) and transported to laboratory immediately. GABA was used in three concentrations (5, 10 and 20 mM). Titration method was used for determination of Titratable acid (TA) and pH was determined by pH meter. TSS was determined by refractometer. Total antioxidant capacity was determined by ferric ions reducing antioxidant power assay (FRAP). Total phenolic content was determined by Folin ciocalteu method and total flavonoid content was determined by the aluminum chloride colorimetric method.
Results
The results showed that TA content remains constant with treatment of GABA during storage. GABA treatment leads to an increase in total antioxidant activity, total phenol, total flavonoid and activity of catalase and guaiacol peroxidase enzymes in the treated fruits compared to control fruit after 30 days of storage. The pH value in treated fruits compared to untreated fruits was decreased during storage. Also, GABA at 10 mM level compared with other concentrations had the highest effect on total antioxidant capacity after 30 days of storage.
Discussion
The increasing of organic acids in treating fruits can be probably due to increasing of antioxidant capacity by GABA treatment, hence the damage to membrane was prevented and the organic acids were used less frequently. Treatment of fruits with GABA decreased the pH during storage, which may be due to its role in reducing of respiration rate in harvested fruits. The mechanism of the effect of GABA on increasing of total phenol and flavonoid content may be due to stimulating the production of Phenylalanine ammonia lyase (PAL) which can trigger phenylpropanoid pathway and hereby, syntheses of phenolic compounds such as flavonoids compounds were occurred. Catalase is one of the key enzymes to protect the cells and cause the conversion of hydrogen peroxide to water and oxygen. Therefore, probably the GABA treatment via the increasing the antioxidant system such as catalase leads to scavenge free radicals thereby protecting plants against oxidative stress.

کلیدواژه‌ها [English]

  • Enzymes
  • Flavonoid
  • Fruit quality
  • Postharvest
  • Storage life
  • Total soluble solid
Ayala-Zavala, J. F., Wang, S. Y., Wang, C. Y. and Gonzalez-Aguilar, G. A. (2007). High oxygen treatment increases antioxidant capacity and postharvest life of Srawberry fruit. Food Technology and Biotechnology, 45(2), 166-173.
Beers, R. F. and Sizer, I. W. (1952). A spectrophotometric method for measuring the breakdown of hydrogen peroxide by catalase. Journal of Biological Chemistry, 195(1), 133-140.
Cao, S. F., Zheng, Y. H., Yang, Z. F., Tang, S. S., Jin, P. and Wang, K. T. (2008). Effect of methyl jasmonate on the inhibition of Colletotrich umacutatum infection in Loquat fruit and the possible mechanisms. Postharvest Biology and Technology, 49(2), 301-307.
Dar, T. A., Uddin, M., Khan, M. M. A., Hakeem, K. R. and Jaleel, H. (2015). Jasmonates counter plant stress: A Review. Environmental and Experimental Botany, 115(49), 49-57.
Dever, M. C., Macdonald, R. A., Cliff, M. A. and Lane, W. D. (1996). Sensory evolution of sweet cherry cultivars. Hortscience, 31(1), 150-153.
FAOSTAT. (2013). Food and Agriculture Organization of the United Nation (FAO). Retrieved from http://www.fao.org.
Ghafar, M., Nayendraprasad, K., Weng, K. and Ismail, A. (2010). Flavonoied, hesperidine, total phenolic contents and antioxidant activities from citrus species. Africa Journal of Biotechnologhy, 9(3), 326-330.
Jalili Marandi, R. (2012). Post-harvest physiology (handling and storage of fruit, vegetables and ornamental plants). Urmia: Urmia Jahad Daneshgahi Press. [In Farsi]
kang, H. M. and Saltveit, M. E. (2002). Chilling tolerance of maize, cucumber and rice seedling leaves and roots and differentially affected by salicylic acid. Plants Physiology, 115(4), 571-576.
Lattanzio, V., Cardinali, A. and Linsalata, V. (2012). Plant phenolics: A biochemecal and physiological perspective, In Cheynier, V., Sarni-Manchado, P., Quideau, S. (Eds.), Recent advances in polyphenol research (1 ed.). Wiley-Blackwell: John Wiley & Sons, Ltd.
Ma, Z. X., Yang, L. Y., Yan, H. X., Kennedy, J. F., and Meng, X. H. (2013). Chitosan and oligochitosan enhance the resistance of peach fruit to brown rot. Carbohydrate Polymers, 94(1), 272-277.
Malekzadeh, P., Khara, J. and Heidari, R. (2012). Effect of exogenous Gama-aminobutyric acid on physiological tolerance of wheat seedlings exposed to chilling stress. Iranian Journal of Plant Physiology, 3(1), 611-617.
Marsh, K., Attanayake, S. Walker, S. Gunson, A., Boldingh, H. and Macrae, E. (2004). Acidity and taste in kiwifruit. Postharvest Biology and Technology, 32(2), 159-168.
Martinez, R. D., Alburquerque, J. M., Valverde, F., Guillen, S., and Serrano, M. (2005). Postharvest sweet cherry quality and safety maintenance by Aloe vera treatment: A new edible coating. Postharvest Biology and Technology, 39(1), 93-100.
Mazzucotelli, E., Tartari, A., Cattivelli, L. and Forlani, G. (2006). Metabolism of γ-aminobutyric acid during cold acclimation and freezing and its relationship to frost tolerance in barley and wheat. Journal of Experimental Botany, 57(14), 3755-3766.
Nouvrozi, N. and Esmaeili, M. (2013). The production of Functional food containing GABA. The twenty-first National Congress of Food Science and Technology, Shiraz University, 320-327. [In Farsi]
Sawaki, Y., Iuchi, S., Kobayashi, Y., Ikka. T., Sakurai, N., Fujita, M., Shinozaki, K., Shibata, D., Kobayashi, M. and Koyama, H. (2009). STOP1 regulates multiple genes that protect Arabidopsis from proton and aluminum toxicities. Plant Physiology, 150(1), 281-294.
Shang, H. T., Cao, S. F., Yang, Z. F., Cai, Y. T. and Zheng, Y. H. (2011). Effect of exogenous ɣ-aminobutyric acid treatment on proline accumulation and chilling injury in peach fruit after long-term cold storage. Journal of Agricultural and Food Chemistry, 59(4), 1264-1268.
Shin, Y. J., Jung, A. R., Rui, H. L., Nock, J. F. and Watkins, C. B. (2008). Harvest maturity, storage temperature and relative humidity effect fruit quality, antioxidant contents and activity, and inhibition of cell proliferation of strawberry fruit. Postharvest Biology and Technology, 49(2), 201-209.
Slinkard, K. and Singleton, V. L. (1977). Total phenol analyses: automation and comparison with manual methods. American Journal of Enology and Viticulture, 28(1), 49-55.
Soleimani Aghdam, M., Naderi, R., Jannatizadeh, A., Askari Sarcheshmeh, M. A. and Babalar, M. (2016). Enhancement of postharvest chilling tolerance of anthurium cut flowers by ɣ-aminobutyric acid (GABA) treatments. Scientia Horticulturae, 198, 52-60.
Tavarini, S., DeglInnocenti, E., Remorini, D., Massai, R. and Guidi, R. (2008). Antioxidant capacity, ascorbic acid, total phenols and carotenoids changes during harvest and after storage on Hayward kiwifruit. Food Chemistry, 107(1), 282-288.
Updhayaya, A., Sankhla, D., Davis, T. D., Sankhla, N. and Smidth, B. N. (1985). Effect of paclobutrazol on the activities of some enzymes of activated oxygen metabolism and lipid peroxidation in senescing soybean leaves. Journal of Plant Physiology, 121(5), 453-461.
Wang, Y., Luo, Z., Huang, X., Yang, K., Gao, SH., and Du, R. (2014). Effect of exogenous ɣ-aminobutyric acid (GABA) treatment on chilling injury and antioxidant capacity in banana peel. Scientia Horticulturae, 168, 132-137.
Xing, S. G., Jun, Y. B., Hau, Z. W. and Liang, L. Y. (2007). Higher accumulation of γ-aminobutyric acid induced by salt stress through stimulating the activity of diamine oxidases in Glycine max (L.) Merr. roots. Plant Physiology and Biochemistry, 45(8), 560-566.
Yang, A., Cao, S., Yang, Z., Cai, Y. and Zheng, Y. (2011). γ-Aminobutyric acid treatment reduces chilling injury and activates the defence response of peach fruit. Food Chemistry, 129(4), 1619-1622.
Yu, C., Zeng, L., Sheng, K., Chen, F., Zhou, T., Zheng, X. and Yu, T. (2014).
γ-Aminobutyric acid induces resistance against Penicillium expansum by priming of defence responses in pear fruit. Food Chemistry, 159, 29-37.
Zapata, P. J., Martinez-Espla, A., Guillen, F., Diaz-Mula, H. M., Martinez-Romero, D., Serrano, M. and Valero, D. (2014). Preharvest application of methyl jasmonate (MeJA) in two plum cultivars. 2. Improvement of fruit quality and antioxidant systems during postharvest storage. Postharvest Biology and Technology, 98, 115-122.
Zhang, C. F., Wang, J. M., Zhang, J. G., Hou, C. J. and Wang, G. L. (2011). Effects of b aminobutyric acid on control of postharvest blue mould of apple fruit and its possible mechanisms of action. Postharvest Biology and Technology, 61(2), 145-151.
Zhang, H., Ma, L., Wang, L., Jiang, S., Dong, Y., and Zheng, X. (2008). Biocontrol of gray mold decay in peach fruit by integration of antagonistic yeast with salicylic acid and their effects on postharvest quality parameters. Biological Control, 47(1), 60-65.