An Optimization of Intermittent Corn Drying in a Laboratory Scale Thin Layer Dryer

Applicability of a single-layer drying model to predict the drying rate of whole figs

“…The Newton and Page equation (Brooker, Bakker-Arkema, & Hall, 1992), two term equation (Henderson, 1974), Wang and Singh equation (Wang & Singh, 1978), Henderson and Pabis equation (Zhang & Litchfield, 1991), modified Henderson and Pabis equation (Karathanos, 1999) and Logarithmic equation (Yaldiz & Ertekin, 2002) are semiempirical drying models based on the diffusion theory, assuming that the resistance to water diffusion occurs in the outer layer of the food (Brooker et al, 1992;Pabis, Jayas, & Cenkowski, 1998). The previous models have been proved to describe well the falling rate period of many foodstuffs during drying (Jayas, Cenkowski, Pabis, & Muir, 1991;Karathanos & Belessiotis, 1999;Karathanos, 1999;Phoungchandang & Woods, 2000).…”

Drying of eggplant and selection of a suitable thin layer drying model

“…Model Reference Newton MR ¼ expðÀktÞ Ayensu (1997), Hummedia and Sheikh (1989), Kassem (1998), Liu and Bakker-Arkema (1997), Nellist (1987), O'Callaghan, Menzies, and Bailey (1971), Sarsavadia, Sawhney, Pangavhane, and Singh (1999), Tiris, Ozbalta, Tiris, and Dincer (1994), Westerman, White, and Ross (1973) Page MR ¼ expðÀkt n Þ Agrawal and Singh (1977), Bruce (1985), Chhinnan (1984), Diamente and Munro (1993), Guarte (1996), Hutchinson and Otten (1982), Pathak, Agrawal, and Singh (1991), Sun and Woods (1994), Zhang and Litchfield (1991) Bhuyan and Prasad (1990), Chhinnan (1984), Guarte (1996), Pal and Chakraverty (1997), Rahman and Perera (1996), Rahman, Perera, and Thebaud (1998) Henderson (1974), Madamba, Driscoll, and Buckle (1996), Rahman and Perera (1996), Rahman et al (1998) …”

“…The effects of initial and final moisture content, drying air temperature, relative humidity and velocity on the drying constants were investigated by many researchers (Agrawal & Singh, 1977;Anigbankpu, Ramsey, & Thompson, 1980;Hummedia & Sheikh, 1989;Kulkarni, Bhole, & Sawarkar, 1993;Misra & Brooker, 1980;Ozdemir & Devres, 1999;Prabhanjan et al, 1995;Syarief, Morey, & Gustafson, 1984;Temple & Van Boxtel, 1999;Verma et al, 1985;Zhang & Litchfield, 1991). In this study, the relationship between the constants of the best mathematical model with the drying variables of drying air temperature and velocity were also determined.…”

Comparative study of physicochemical properties of accelerated and naturally aged rice

“…An increase in head rice yield after tempering could be explained by a couple of reasons. First of all, the tempering step helps release the moisture gradients created during drying (Steffe, Singh, & Bakshi, 1979;Zhang & Litchfield, 1991;Tolaba, Aguerre, & Suárez, 1999). Secondly, since tempering was made at a temperature near the gelatinization temperature, in the range of 73-80°C, the process might result in further starch gelatinization (after drying).…”