مدل‌سازی و بهینه‌سازی عملکرد خشک‌کن خلائی- مادون‌قرمز در فرآیند تولید قرص فشرده گوجه‌فرنگی: خواص شیمیایی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه مهندسی بیوسیستم، دانشکده کشاورزی، دانشگاه بوعلی سینا، همدان

2 گروه مهندسی بیوسیستم، دانشکده کشاورزی، دانشگاه بوعلی سینا، همدان، ایران

3 گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه بوعلی سینا، همدان

چکیده

در این پژوهش شرایط بهینه خشک‌کردن قرص فشرده گوجه­فرنگی تحت شرایط خلائی مادون­قرمز به منظور تولید قرص با خواص کیفی و شیمیایی مناسب تعیین شد. محتوای لیکوپن، فنل کل، غلظت ویتامین ث و فعالیت آنتی‌اکسیدانی به عنوان خواص شیمیایی و شاخص­های رنگی ∆L*، ∆a*و b*∆ به عنوان خواص کیفی مطالعه شدند. فرآیند خشک­کردن نمونه‌ها در پنج سطح دمایی 40، 50، 60، 70 و °C 80 و پنج سطح فشار خلأ 20، 30، 40، 50 و kPa 60 صورت گرفت. تجزیه و تحلیل آماری داده‌ها و بهینه‌سـازی فرآیند خشک­کردن با استفاده از روش سطح پاسخ انجام شدند. نتایج نشان داد که در خشک­کردن به شیوه خلائی- مادون‌قرمز، با افزایش دمای هوای محفظه خشک­کن، غلظت ویتامین ث و محتوای فنل کل قرص گوجه­فرنگی، کاهش و محتوای لیکوپن و فعالیت آنتی اکسیدانی قرص گوجه­فرنگی افزایش یافت. هم­چنین، افزایش دما سبب افزایش اختلاف بیشتر بین شاخص‌های رنگ L* و a* و کاهش اختلاف بین شاخص رنگ b* قرص نسبت به گوجه‌فرنگی تازه شد. نقطه بهینه فرآیند خشک­کردن قرص گوجه­فرنگی در دمای °C 56 و فشار خلاء kPa 30 به دست آمد. میزان کاهش غلظت ویتامین ث، محتوای لیکوپن و محتوای فنل کل قرص گوجه­فرنگی خشک­شده در حالت بهینه به ترتیب 3/54 ، 6/2 و 62/29 درصد بود. خشک­کردن تحت دمای پایین‌تر سبب افزایش شاخص مطلوبیت مدل بدست آمده از روش سطح پاسخ گردید.

کلیدواژه‌ها


عنوان مقاله [English]

Modeling and Optimization of Vacuum-infrared Dryer Performance in Production Process of Tomato Compressed Tablet: Chemical Properties

نویسندگان [English]

  • Manouchehr Rashidi 1
  • Reza Amiri Chaijan 2
  • Ahmad Ershadi 3
  • Ali Ghasemi 1
1 Department of Biosystems Engineering, Faculty of Agriculture, Bu-Ali Sina University, Hamedan, Iran
2 Department of Biosystems Engineering, Faculty of Agriculture, Bu Ali Sina University, Hamedan, Iran
3 Department of Horticultural Sciences, Faculty of Agriculture, Bu-Ali Sina University, Hamedan, Iran
چکیده [English]

In this study, optimum drying conditions of compressed tablet tomato under vacuum-infrared conditions were determined to produce tablet with appropriate chemical and qualitative properties. The content of lycopene, total phenol, vitamin C concentration, antioxidant activity as chemical properties and color indices ΔL*, Δa* and Δb* were studied as qualitative properties. Drying process of samples was performed at five levels of air temperature of the compartment 40, 50, 60, 70 and 80 °C and five vacuum pressures 20, 30, 40, 50 and 60 kPa. Statistical analysis of data and optimization of drying process were performed using response surface methodology. The results showed that in vacuum-infrared drying, as the temperature of the dryer chamber increased, the concentration of vitamin C and total phenol content of tomato tablet decreased and lycopene content and antioxidant activity of tomato tablet increased. Also, increasing temperature increased the difference between the color indices L* and a* and reduced the difference between the color index b* compared to fresh tomatoes. The optimum point the drying process of tomato tablet was obtained at 56 °C and vacuum pressure of 30 kPa. The reduction rates of vitamin C concentration, lycopene content, and total phenol content of dried tomato tablets in optimal condition were 54.3, 2.6 and 29.62 percent, respectively. Drying at lower temperature increased the model's desirability index obtained by response surface methodology.

کلیدواژه‌ها [English]

  • Tableting
  • Vacuum dryer
  • vitamin c
  • lycopene

 

 
Adiba, B. D., Salem, B., Nabil, S., Abdelhakim, M. (2011). Preliminary characterization of food tablets from date (Phoenix dactylifera L.) and spirulina (Spirulina sp.) powders. Powder Technology, 208(3), 725-730
Ahmadi, G. M., and Amiri Chayjan, R. (2017). Optimization of hazelnut kernel drying in an inferared dryer with microwave pretreatment using response surface metodology. (In Farsi)
Arslan, D., and Özcan, M. (2011). Drying of tomato slices: changes in drying kinetics, mineral contents, antioxidant activity and color parameters Secado de rodajas de tomate: cambios en cinéticos del secado, contenido en minerales, actividad antioxidante y parámetros de color. CyTA-Journal of Food, 9(3), 229-236.
Aziz, M., Yusof, Y., Blanchard, C., Saifullah, M., Farahnaky, A., and Scheiling, G. (2018). Material Properties and Tableting of Fruit Powders. Food Engineering Reviews, 1-15.
Brand-Williams, W., Cuvelier, M.-E., and Berset, C. (1995). Use of a free radical method to evaluate antioxidant activity. LWT-Food Science and Technology, 28(1), 25-30.
Da Porto, C., and Natolino, A. (2018). Optimization of the extraction of phenolic compounds from red grape marc (Vitis vinifera L.) using response surface methodology. Journal of Wine Research, 29(1), 26-36.
Dewanto, V., Wu, X., Adom, K. K., and Liu, R. H. (2002). Thermal processing enhances the nutritional value of tomatoes by increasing total antioxidant activity. Journal of agricultural and food chemistry, 50(10), 3010-3014.
Ekow, A. E., Haile, M. A., John, O. W. U. S. U., &Narku, E. F. (2013). Microwave-vacuum drying effect on drying kinetics, lycopene and ascorbic acid content of tomato slices. Journal of Stored Product and Postharvest4, 11-22.
FAO, 2017. FAOSTAT: Data-crops. Food and Agriculture Organization of the United Nations, Rome, Italy
Fish, W. W., Perkins-Veazie, P., and Collins, J. K. (2002). A quantitative assay for lycopene that utilizes reduced volumes of organic solvents. Journal of Food composition and Analysis, 15(3), 309-317.
Ghasemi, A., and Chayjan, R. A. (2019) Numerical simulation of vitamin C degradation during dehydration process of fresh tomatoes. Journal of Food Process Engineering, paper number: e13189.
Ghasemi, A., and Chayjan, R. A. (2018). Optimization of Pelleting and Infrared-Convection Drying Processes of Food and Agricultural Waste Using Response Surface Methodology (RSM). Waste and Biomass Valorization, 1-19.
Ghasemi, A., Chayjan, R. A., and Najafabadi, H. J. (2018). Optimization of granular waste production based on mechanical properties. Waste Management, 75, 82-93.
Ifie, I., and Marshall, L. J. (2018). Food processing and its impact on phenolic constituents in food. Cogent Food and Agriculture, 4(1), 1-11.
Kerkhofs, N., Lister, C., and Savage, G. (2005). Change in colour and antioxidant content of tomato cultivars following forced-air drying. Plant Foods for Human Nutrition, 60(3), 117-121.
Liu, F., Cao, X., Wang, H., and Liao, X. (2010). Changes of tomato powder qualities during storage. Powder Technology, 204(1), 159-166.
Mahapatra, A., Harris, D., Durham, D., Lucas, S., Terrill, T., Kouakou, B., and Kannan, G. (2010). Effects of moisture change on the physical and thermal properties of sericea lespedeza pellets. International Agricultural Engineering Journal, 19(3), 23-29.
Marfil, P., Santos, E., and Telis, V. (2008). Ascorbic acid degradation kinetics in tomatoes at different drying conditions. LWT-Food Science and Technology, 41(9), 1642-1647.
Martí, R., Leiva-Brondo, M., Lahoz, I., Campillo, C., Cebolla-Cornejo, J., and Roselló, S. (2018). Polyphenol and L-ascorbic acid content in tomato as influenced by high lycopene genotypes and organic farming at different environments. Food Chemistry, 239, 148-156.
Ong, M., Yusof, Y., Aziz, M., Chin, N., and Amin, N. M. (2014). Characterisation of fast dispersible fruit tablets made from green and ripe mango fruit powders. Journal of Food Engineering, 125, 17-23.
Onwude, D. I., Hashim, N., Janius, R. B., Nawi, N. M., and Abdan, K. (2016). Modeling the thin‐layer drying of fruits and vegetables: A review. Comprehensive reviews in food science and food safety, 15(3), 599-618.
Purkayastha, M. D., Nath, A., Deka, B. C., and Mahanta, C. L. (2013). Thin layer drying of tomato slices. Journal of food science and technology, 50(4), 642-653.
Santos, P., and Silva, M. (2008). Retention of vitamin C in drying processes of fruits and vegetables—A review. Drying Technology, 26(12), 1421-1437.
Singleton, V. L., and Rossi, J. A. (1965). Colorimetry of total phenolics with phosphomolybdic-phosphotungstic acid reagents. American journal of Enology and Viticulture, 16(3), 144-158.
Sledz, M., and Witrowa-Rajchert, D. (2012). Influence of microwave-convective drying of chlorophyll content and colour of herbs. Acta Agrophysica, 19(4).
Safari, M., AmiriChayjan, R., Alaei, B. (2016). Modeling of some thermal and physical properties of almond kernels under vacuum-infrared dryer with microwave pretreatment. , 39(1), 21-37
Šumić, Z., Vakula, A., Tepić, A., Čakarević, J., Vitas, J., and Pavlić, B. (2016). Modeling and optimization of red currants vacuum drying process by response surface methodology (RSM). Food chemistry, 203, 465-475.
Toor, R. K., and Savage, G. P. (2006). Effect of semi-drying on the antioxidant components of tomatoes. Food chemistry, 94(1), 90-97.
Wongsiriamnuay, T., and Tippayawong, N. (2015). Effect of densification parameters on the properties of maize residue pellets. Biosystems Engineering, 139, 111-120.
Yusof, Y., Mohd Salleh, F., Chin, N., & Talib, R. (2012). The drying and tabletting of pitaya powder. Journal of Food Process Engineering, 35(5), 763-771
 Zea, L. P., Yusof, Y. A., Aziz, M. G., Ling, C. N., and Amin, N. A. M. (2013). Compressibility and dissolution characteristics of mixed fruit tablets made from guava and pitaya fruit powders. Powder Technology, 247, 112-119.