Determination of Peeling Efficiency, Free Fatty Acid, Peroxide Value and Sensory Evaluation of Peeled Pistachio Kernel using Hot Water

Journal of Nuts

مقاله 7، دوره 10، شماره 2، اسفند 2019، صفحه 175-185   

نوع مقاله: Research Article

شناسه دیجیتال (DOI): 10.22034/jon.2019.1877513.1067

نویسندگان

Ahmad shakerardekani^{* 1}؛ Abdolhossein Mohamadi²

¹Pistachio Research Center, Horticultural Sciences Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Rafsanjan, Iran

²Master of Science in Food Science & Technology, Department of Agriculture, Kar Higher Education Institute, Rafsanjan, Iran Pistachio Safety Research Center, Rafsanjan university of Medical Sciences

چکیده

Pistachio green kernel, is obtained by removing the red testa of around the whole kernel. In this study, the suitable peeling conditions for removing the testa of the kernel were determined using hot water in five termperature levels of 75, 80, 85, 90, and 95°C and diffetent hot water immersion times of 2, 4, 6, 8, and 10 minutes in riped and unripe samples. Quality factors including the number of pistachio green kernels with remained red testa, free fatty acids, and peroxide value were measured at 3 and 6 months after peeling. Sensory evaluations (including appearance, color, taste, and texture) of the best treatments from the previous stage, were measured by 10 trained panelists. Peeling performance were not good using temperatures of 75 and 80°C in both riped and unripe samples. Peeling performance of 100%, was obtained at 85 and 90°C (6, 8 and 10 min) and 95°C (2, 4, 6, 8 and 10 min) kernel immersion in hot water in riped and unripe cultivars. The qualitative factors, free fatty acids and peroxide value, has have increased in both riped and unripe samples during storage. After 6 months of storage, the lowest peroxide value was observed at 90°C (10 min immersion in hot water) and 95°C (2, 4, 6, 8 and 10 min immersion in hot water). The minimum free fatty acid, was observed in riped ripe samples at 90° C (10 min immersion) and in the unripe samples at 95°C (2 and 4 min immersion). According to the comments of trained panelists, the significant differences between treatments were not observed in terms of the sensory characteristics such as taste, texture, color, and appearance at 5% level. In general, with respect to the performance of peeling, free fatty acids, peroxide value, and sensory evaluation, temperature of 95°C (2 min kernel immersion in hot water) can be used for peeling of riped and unripe samples.

کلیدواژه‌ها

Pistachios؛ Quality؛ Seed coat؛ Sensory evaluation؛ Shelf-life

مراجع

Agüero MV, Ansorena MR, Roura SI, del Valle CE (2008) Thermal inactivation of peroxidase during blanching of butternut squash. LWT-Food Science and Technology. 41(3), 401-407.

Angelo AJ, Kuck James C, Ory Robert L (1977) Enzymes and oxidative stability of peanut products. Enzymes in food and beverage processing. American Chemical Society. Washington, DC. 229-243.

Bellomo MG, Fallico B (2007) Anthocyanins, chlorophylls and xanthophylls in pistachio nuts (Pistacia vera) of different geographic origin. Journal of Food Composition and Analysis. 20(3-4), 352-359.

Bonvehí Serra J, Serrano Rosüa N (1996) Enzymatic activities in the varieties of hazelnuts (Corylus avellana L.) grown in Tarragona, Spain. Food Chemistry. 56(1), 39-44.

Branch AL, Worthington RE, Roth IL, Chinnan MS, Nakayama T (1987) Effect of hot water immersion on storage stability of non-refrigerated peanuts. Peanut Science. 14(1), 26-30.

Buranasompob A, Tang J, Powers JR, Reyes J, Clark S, Swanson BG (2007) Lipoxygenase activity in walnuts and almonds. LWT-Food Science and Technology. 40(5), 893-899.

Cam S, Kilic M (2009) Effect of blanching on storage stability of hazelnut meal Journal of Food Quality.32(3), 369-380.

Castruccio Giuseppe M (1923) Blanched brazil-nut kernel: Google Patents.

Chandrasekara N, Shahidi F (2011) Oxidative stability of cashew oils from raw and roasted nuts. Journal of the American Oil Chemists' Society. 88(8), 1197-1202.

de Camargo, Adriano Costa, Regitano-d’Arce, Marisa Aparecida Bismara, de Alencar, Severino Matias, Canniatti-Brazaca, Solange Guidolin, de Souza Vieira, Thais Maria Ferreira, & Shahidi, Fereidoon (2016) Chemical changes and oxidative stability of peanuts as affected by the dry-blanching. Journal of the American Oil Chemists' Society. 93(8), 1101-1109.

DiPersio PA, Kendall PA, Yoon Y, Sofos JN (2007) Influence of modified blanching treatments on inactivation of Salmonella during drying and storage of carrot slices. Food Microbiology. 24(5), 500-507.

Gamli F, Hayoglu I (2012) Effects of nut proportion and storage temperature on some chemical parameters of pistachio nut cream. Journal of Food Science and Engineering.2, 15-23.

Giuffrida D, Saitta M, La Torre L, Bombaci L, Dugo G (2006) Carotenoid, chlorophyll and chlorophyll-derived compounds in pistachio kernels (Pistacia vera L.) from Sicily. Italian Journal of Food Science.18(3), 309-316.

Gornicki K, Kaleta A (2007) Drying curve modelling of blanched carrot cubes under natural convection condition. Journal of Food Engineering. 82(2), 160-170.

Gowen A, Abu-Ghannam N, Frias J, Oliveira J (2007) Influence of pre-blanching on the water absorption kinetics of soybeans. Journal of Food Engineering. 78(3), 965-971.

Hughey CA, Januszicwicz R, Minardi CS, Phung J, Huffman BA, Reyes L, Wilcox BE, Prakash A (2011) Distribution of almond polyphenols in blanch water and skins as a function of blanching time and temperature. Food Chemistry. 131(4), 1165-1173.

ISIRI (2008) Pistachio kernel without third shell-Specifications and test methods (4631). Karaj: Institute of Standards and Industrial Research of Iran.

Kidmose U, Martens HJ (1999) Changes in texture, microstructure and nutritional quality of carrot slices during blanching and freezing. Journal of the Science of Food and Agriculture. 79(12), 1747-1753.

Koca N, Karadeniz F, Burdurlu HS (2007) Effect of pH on chlorophyll degradation and colour loss in blanched green peas. Food Chemistry.100(2), 609-615.

Kowalska H, Lenart A, Leszczyk D (2008) The effect of blanching and freezing on osmotic dehydration of pumpkin. Journal of Food Engineering. 86(1), 30-38.

Lentas K, Witrowa-Rajchert D (2008) Effect of blanching conditions of celeriac tissue on the texture properties of dried material. Zywnosc Nauka Technologia Jakosc. 15(4), 207-215.

Mortazavi S, Azizollahi F, Moallemi N (2015) Some quality attributes and biochemical properties of nine Iranian date (Phoenix dactylifera L.) cultivars at different stages of fruit development. International Journal of Horticultural Science and Technology. 2, 161-171.

Nair HR (2003) Edible testa-on (skin-on) cashew nuts and methods for preparing same: Patent No. US2005/0089613A1.

Ory RL, Crippen KL, Lovegren NV (1992) Off-flavors in peanuts and peanut products. Developments in Food Science. 28, 57-75.

Patterson Henry Basil Wilberforce (1989) Handling and storage of oilseeds, oils, fats, and meal: Sole distributor in the USA and Canada, Elsevier Science Pub. Co. pp. 101-135.

Pershern AS, Breene W M, Lulai EC (1995) Analysis of factors influencing lipid oxidation in hazelnuts. Journal of Food Processing and Preservation. 19(1), 9-26.

Sanders TH, Bett KL (1995) Effect of harvest date on maturity, maturity distribution, and flavor of florunner peanuts. Peanut Science. 22(2), 124-129.

Sanders TH, Adelsberg GD, Hendrix KW, McMichael Jr RW (1999) Effect of blanching on peanut shelf-life. Peanut Science.26(1), 8-13.

Schwartz SJ, Lorenzo TV (1991) Chlorophyll stability during continuous aseptic processing and storage. Journal of Food Science.56(4), 1059-1062.

Seyhan F, Tijskens LMM, Evranuz O (2002) Modelling temperature and pH dependence of lipase and peroxidase activity in Turkish hazelnuts. Journal of Food Engineering. 52(4), 387-395.

Shakerardekani A, Shahedi M (2015) Effect of soapwort root extract and glycyrrhizin on consumer acceptance, texture, and oil separation of pistachio halva. Journal of Agricultural Science and Technology. 17(6), 1495-1505.

Shakerardekani A, Karim R, Ghazali HM, Chin NL (2013a) Development of pistachio (Pistacia vera L.) spread. Journal of Food Sciences.78(3), S484-S489.

Shakerardekani A, Karim R, Ghazali HM, Chin NL (2013b) Textural, rheological and sensory properties and oxidative stability of nut spreads-A review. International Journal of Molecular Sciences. 14, 4223-4241.

Shakerardekani A, Karim R, Ghazali HM, Chin NL (2013c) The effect of monoglyceride addition on the rheological properties of pistachio spread. Journal of the American Oil Chemists' Society. 90(10), 1517-1521.

Shakerardekani A, Saberi N, Taheri A (2012) Determination of optimum hot-water conditions to seed coat removing for production of pistachio green kernel in Ohadi cultivar. (pp. 25). Rafsanjan: Iranian Pistachio Research Institute.

Shakerardekani A, Karim R (2018) Optimization of Processing Variables for Pistachio Paste Production. Pistachio and Health Journal.1(1), 13-19.

Shakerardekani A, Karim R, Hasanah M Ghazali, Nyuk L Chin (2015) Oxidative Stability of Pistachio (Pistacia vera L.) Paste and Spreads. Journal of the American Oil Chemists' Society.92(7), 1015-1021.

Shivhare US, Gupta M, Basu S, Raghavan GSV (2009) Optimization of blanching process for carrots. Journal of Food Process Engineering. 32(4), 587-605.

Stone Herbert, Bleibaum, Rebecca N, Thomas, Heather A (2012) Sensory evaluation practices: Academic press. pp. 69-97.

Valdés A, Beltrán A, Karabagias I, Badeka A, Kontominas MG, Garrigós Carmen M (2015) Monitoring the oxidative stability and volatiles in blanched, roasted and fried almonds under normal and accelerated storage conditions by DSC, thermogravimetric analysis and ATR‐FTIR. European Journal of Lipid Science and Technology. 117(8), 1199-1213.

Wrolstad RE, Acree TE, Decker EA, Penner MH, Reid DS, Schwartz SJ, Shoemaker CF, Smith DM, Sporns P (2001) Current Protocols in Food Analytical Chemistry. New York: Wiley. pp. 485-529.