Effect of Power Ultrasound Treatment on The shelf Life of Edible Mushroom

Document Type : Research Paper

Authors

1 Dept of Agrotechnology, College of Aburaihan,, University of Tehran

2 Dept of Agrotechnology, College of Abouraihan, University of Tehran

3 Dept of Food Science Technology, College of Abouraihan, University of Tehran,

4 Department of Biosystems Engineering,, Gorgan University of Agricultural Sciences and Natural Resources

Abstract

Introduction: White edible button mushroom (Agaricus bisporus) is one of the most sensitive postharvest agricultural products physiologically. Poor management and high humidity of freshly harvested horticultural products have reduced their shelf life and thus increased biowastes, so increasing the shelf life of fruits and vegetables to reduce waste is one of the essential goals of postharvest management. The shelf life of button mushrooms with minimal processing is between two and four days at average ambient temperature due to enzymatic browning. A method in increasing the storage of edible mushrooms is using power ultrasonic washing along with other treatments. Ultrasonics is one of the practical methods of non-contact washing of vegetables and fruits with sensitive textures. Ultrasound pretreatment involves immersing the fruit in distilled water or aqueous solution and applying the ultrasound simultaneously. Ultrasound causes a series of rapid contractions and intermittent expansions. The objective of this study was to investigate the effects of using power ultrasound alone and in combination with other treatments such as hydrogen peroxide and ozone on improving the postharvest characteristics of ediblemushrooms.
Materials and methods: In this study, the button fungus (Agaricus bisporus) was used. The fungi were relatively the same size without physical damage and fungal infections. In order to create ultrasonic waves, a Unident Geneve ultrasonic bath machine made in Switzerland with a production power of 100 watts and a frequency of 20 to 35 kHz was used to wash the desired product. The application time of ultrasound for this study was 4 and 6 minutes and it was used at a constant temperature of 20 degrees Celsius. Also, in this research, the ARDA Ozone Plus series ozone generator was used to produce ozone. The amount of ozone produced by this device without oxygen capsule (mgr) is 200 ⁄h. In the present study, the effect of different treatments on increasing the storage of edible mushrooms, physical and chemical properties such as weight loss, pH, stiffness, soluble solids and microbial load were tested.

Results and discussion: Weight loss percentage is one of the most important factors in quality assessment in fruits and vegetables, which is directly related to the amount of moisture content in the samples. During the storage period, the lower the moisture release rate, the smaller this factor becomes, which indicates the retention of moisture in the sample and its quality stability. Comparison of samples During the storage period, there is an increasing trend in weight loss of samples that the amount of weight loss in the control sample is significantly higher than the samples washed by ultrasound. As the amount of maturation due to cell disintegration due to enzymatic activity increases, the firmness of the fruit tissue will also decrease. Tissue loss is the most important change during the storage period of fruits and vegetables and depends on the rate of metabolic changes and water. The reason for the increase in stiffness again is that the fruit and vegetable samples usually start to lose their water gradually. Obviously, this leads to an increase in their stiffness index. Changes in the texture of the fungal cap are an important criterion for determining the quality, amount of metabolic changes and the amount of water in its texture. Decreased strength and softening in the fungal cap tissue is related to the activity of microorganisms and enzyme production. Bacteria with enzymatic activity on the mushroom cause the interstitial material in the mushroom cap to break down and lead to cell destruction, resulting in the loss of tissue and shrinkage. At the end of the twelfth day of storage, the lowest stiffness is related to the ultrasonic treatment of 4 minutes and the highest stiffness is related to the treatment with washing with distilled water for 4 minutes, which shows the highest amount of wood and drying of the fungus. The reason for the decrease in stiffness during the storage period may be due to the breakdown of enzymes, water depletion or degradation of pectic substances in the fruit. The soluble solids from the fungus to distilled water are subjected to ultrasound. The results show that the treatments washed with sonication and hydrogen peroxide have a high performance in terms of microbial load control compared to the control mode and other treatments and have a significant difference at the level of 0.01. Ultrasonic treatment with hydrogen peroxide for 6 minutes of ripple on the first day of storage had 61 and at the end of the storage period had 87.5 cfu / g microbial load.
Coclusion: Ultrasonic washing of agricultural products is one of the ways to increase the shelf life of agricultural and horticultural products. The results of this study show that the samples of mushroom washed with sonication and hydrogen peroxide have a high performance in terms of microbial population control compared to the control mode and other treatments and have a significant difference. Ultrasonic treatment with hydrogen peroxide for 6 minutes on the first day of storage had 61 and at the end of storage period 87.5 cfu / g microbial load. Samples with ozone and ozone-containing treatments combined with sonication with ultrasound have a higher ability to maintain the strength of mushroom tissue. According to the studied treatments and traits, the obtained results show that the sonication treatment with ultrasound with hydrogen peroxide for 6 minutes has the best performance to increase the shelf life of the edible mushroom.

Keywords


الوندی س و سیاری م، 1395. اثر آسکوربات کلسیم و تیمار دمایی بر افزایش عمر قفسه ای قارچ تکمه ای، به زراعی کشاورزی، 18(4)، 921-933.
خادمی الف، سرلک ف و عرفانی مقدم ج، 1394. افزایش عمر پس از برداشت قارچ خوراکی توسط تیمار فراصوت از طریق کاهش بار میکروبی و ممانعت از قهوه‌ای شدن آنزیمی، نهمین کنگره علوم باغبانی، 5 تا 8 بهمن 1394، اهواز.
خوشکام س، 2018. عوامل ایجاد فساد و راهکارهای کاهش ضایعات پس از برداشت در محصولات گلخانه‌ای، سبزیجات گلخانه‌ای، 1(1)، 41-52.‎
سرلک ف، خادمی الف و عرفانی مقدم ج، 1396. ارزیابی اثر برخی تیمارهای پس از برداشت بر افزایش عمر انبارمانی قارچ تکمه‌ای، علوم و صنایع غذایی ایران، 14(64)، 43-50.
صادقی ص، کرمی م و سیاری م، 1398. اثر ازن بر انبارمانی و برخی خصوصیات کمی و کیفی فلفل دلمه‌ای، علوم و صنایع غذایی ایران، 16(90 )، 177-185.
مستوفی ی، گرانسایه م، عبدوسی و و نجاتیان م، 1392. تاثیر ازن بر کیفیت پس از برداشت و عمر انبارمانی انگور ایرانی رقم فخری، علوم باغبانی ایران، 44(1)، 1-9.
Akbudak B, 2008. Effect of polypropylene and polyvinyl chloride plastic film packaging materials on the quality of 'Yalova Charleston' pepper (Capsicum annuum L.) during storage. Food Science and Technology Research 14(1): 5-11.
Asefpour Vakilian K and Massah J, 2017. A farmer-assistant robot for nitrogen fertilizing management of greenhouse crops. Computers and Electronics in Agriculture 139: 153-163.
Braaksma A, Schaap DJ, Donkers JW and Schipper CMA, 2001. Effect of cytokinin on cap opening in Agaricus bisporus during storage. Postharvest Biology and Technology 23(2): 171-173.
Bhargava N, Mor RS, Kumar K and Sharanagat VS, 2021. Advances in application of ultrasound in food processing: A review. Ultrasonics Sonochemistry 70: 105293.
Cong F, Zhang Y and Dong W, 2007. Use of surface coatings with natamycin to improve the storability of Hami melon at ambient temperature. Postharvest Biology and Technology 46(1): 71-75.
Fernandes FA and Rodrigues S, 2008. Application of ultrasound and ultrasound-assisted osmotic dehydration in drying of fruits. Drying Technology 26(12): 1509-1516.
Gallo M, Ferrara L and Naviglio D, 2018. Application of ultrasound in food science and technology: A perspective. Foods 7(10): 164.
Jiang T, 2013. Effect of alginate coating on physicochemical and sensory qualities of button mushrooms (Agaricus bisporus) under a high oxygen modified atmosphere, Postharvest Biology and Technology 76: 91-97.
Jowkar M, 2004. The importance of horticultural extension in reducing postharvest losses in Iran. In IV International Symposium on Horticultural Education, Extension and Training 672 (pp. 171-175).
Kiani H, Zhang Z, Delgado A and Sun DW, 2011. Ultrasound assisted nucleation of some liquid and solid model foods during freezing. Food Research International 44(9): 2915-2921.
Lagnika C, Zhang M and Mothibe KJ, 2013. Effects of ultrasound and high pressure argon on physico-chemical properties of white mushrooms (Agaricus bisporus) during postharvest storage. Postharvest Biology and Technology 82: 87-94.
Lin X and Sun DW, 2019. Research advances in browning of button mushroom (Agaricus bisporus): Affecting factors and controlling methods. Trends in Food Science & Technology 90: 63-75.
Muthukumaran S, Kentish SE, Stevens GW, Ashokkumar M and Mawson R, 2007. The application of ultrasound to dairy ultrafiltration: the influence of operating conditions. Journal of Food Engineering 81(2): 364-373.
Nerya O, Ben-Arie R, Luzzatto T, Musa R, Khativ S, Vaya J, (2006). Prevention of Agaricus bisporus postharvest browning with tyrosinase inhibitors. Postharvest Biology and Technology, 39(3), 272-277.
Nirmal NP, Benjakul S, Ahmad M, Arfat YA and Panichayupakaranant P, 2015. Undesirable enzymatic browning in crustaceans: Causative effects and its inhibition by phenolic compounds. Critical Reviews in Food Science and Nutrition 55(14): 1992-2003.
Olivas GI, Mattinson DS and Barbosa-Cánovas GV, 2007. Alginate coatings for preservation of minimally processed ‘Gala’ apples. Postharvest biology and Technology 45(1): 89-96.
Park YS, Jung ST and Gorinstein S, 2006. Ethylene treatment of Hayward kiwifruits (Actinidia deliciosa) during ripening and its influence on ethylene biosynthesis and antioxidant activity, Scientia Horticulturae 108(1): 22-28.
Rastogi NK, 2011. Opportunities and challenges in application of ultrasound in food processing. Critical Reviews in Food Science and Nutrition 51(8): 705-722.
Rojas-Graü MA, Raybaudi-Massilia RM, Soliva-Fortuny RC, Avena-Bustillos RJ, McHugh TH and Martín-Belloso O, 2007. Apple puree-alginate edible coating as carrier of antimicrobial agents to prolong shelf-life of fresh-cut apples. Postharvest Biology and Technology 45(2): 254-264.
Singh P, Horst‐Christian L, Ali Abas W and Sven S, 2010. Recent advances in extending the shelf life of fresh Agaricus mushrooms: A review. Journal of the Science of Food and Agriculture 90(9): 1393-1402.
Taherzadeh A and Hojjat S, 2013. Study of postharvest losses of wheat in North Eastern Iran. International Research Journal of Applied and Basic Sciences 4(6): 1502-1505.
Zivanovic S, Busher RW and Kim KS, 2000. Textural changes in mushrooms (Agaricus bisporus) associated with tissue ultrastructure and composition. Journal of Food Science 65(8): 1404-1408.
Zhang K, Pu YY and Sun DW, 2018. Recent advances in quality preservation of postharvest mushrooms (Agaricus bisporus): A review. Trends in Food Science & Technology 78: 72-82.
Žnidarčič D, Ban D, Oplanić M, Karić L and Požrl T, 2010. Influence of postharvest temperatures on physicochemical quality of tomatoes (Lycopersicon esculentum Mill.). Journal of Food, Agriculture & Environment 8(1): 21-25.