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Effect of multi-pass high pressure homogenization on physicochemical properties of hazelnut milk from hazelnut cake: An investigation by response surface methodology    
Yazarlar
Prof. Dr. Osman GÜL
Ondokuz Mayıs Üniversitesi, Türkiye
İlyas Atalar
Ondokuz Mayıs Üniversitesi, Türkiye
Furkan Türker Sarıcaoğlu
Bayburt Üniversitesi, Türkiye
Fehmi Yazıcı
Ondokuz Mayıs Üniversitesi, Türkiye
Özet
The effects of high pressure homogenization conditions (pressure, temperature, and hazelnut concentration) on physicochemical properties of hazelnut milks were evaluated, and process parameters were optimized using response surface methodology. Also, the effect of low- and high-temperature heat treatments on properties of hazelnut milk processed according to optimum conditions was investigated. The influence of homogenization pressure was greatest on properties of hazelnut milk followed by hazelnut cake concentration and homogenization temperature within the experimental domain. The optimized experimental conditions for the homogenization of hazelnut milk were 1,140 bar for homogenization pressure, 38.1 °C for homogenization temperature, and 12.97% for hazelnut cake concentration. Under optimized conditions, homogenization process was validated by comparing the quality attributes of optimized hazelnut milk with the predicted values, which were between −10.06 and 11.11% of relative error indicated good accordance. Physical and structural properties of samples produced using optimum conditions were slightly affected by heat treatments. Practical applications: Hazelnut is an important nutritional source; it is reasonably expensive for production of hazelnut milk. Moreover, hazelnut cake is a by-product from hazelnut oil production and should not be directly used for human consumption because it may contain some residual chemical solvent from hazelnut oil extraction process. However, the cake from the cold press, also a by-product, of hazelnut oil production does not contain any chemical residue and can be used for hazelnut beverage. Moreover, high pressure homogenization is generally using for eliminating sedimentation of solids and creaming problems. Therefore, we have established the optimum homogenization conditions for processing hazelnut milk using response surface methodology.
Anahtar Kelimeler
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı JOURNAL OF FOOD PROCESSING AND PRESERVATION
Dergi ISSN 0145-8892
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 05-2018
Cilt No 42
Sayı 5
Sayfalar 13615 /
Doi Numarası 10.1111/jfpp.13615
Makale Linki http://doi.wiley.com/10.1111/jfpp.13615