Effective moisture diffusivity of Sierrathrissaleonensis cracker: optimization, sensitivity and uncertainty analyses

被引:3
作者
Adeyi, Abiola John [1 ,2 ]
Adeyi, Oladayo [3 ]
Oke, Emmanuel Olusola [3 ]
Okonkwo, Clinton E. [4 ]
Ogunsola, Akinola David [1 ]
机构
[1] Ladoke Akintola Univ Technol, Dept Mech Engn, PMB 4000, Ogbomosho, Oyo State, Nigeria
[2] Forestry Res Inst Nigeria Ibadan, PMB 5054, Ibadan, Oyo State, Nigeria
[3] Michael Okpara Univ Agr, Dept Chem Engn, PMB 7267, Umudike, Abia State, Nigeria
[4] Landmark Univ, PMB 1001, Omu Aran, Kwara State, Nigeria
关键词
Sierrathrissaleonensis; Sensitivity analysis; Uncertainty analysis; Effective moisture diffusivity; Cracker; RESPONSE-SURFACE METHODOLOGY; ENERGY;
D O I
10.1016/j.sciaf.2021.e00807
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Sierrathrissaleonensis (SL) is a low valued fish in Nigeria because of its small size and avail-ability of fleshy alternatives. Therefore, an alternative utilization of SL is crucial. In this study, SL was used to produce fish cracker (SLC). The SLC, being an intermediate product was dried to achieve moisture stability. During drying process, the influence of drying fac-tors (oven air velocity, sample thickness and oven temperature) on the effective moisture diffusivity (EMD) of SLC was investigated using response surface methodology (RSM) in Design Expert software. The uncertainty of the result and the sensitivity analyses of the drying factors to the variations of EMD were conducted using Monte Carlo simulation in oracle crystal ball (OCB) software. Results showed that fish cracker could be successfully developed with SL. The initial moisture content (d.b) of the SLC was 149.23%. Increment in oven drying temperature and oven air velocity increased the EMD of the SLC while increment in SLC sample thickness decreased the EMD of the SLC. The model developed had an R-2 value of 0.9865. Model terms were significant at 5% confidence level. The theoretical optimum drying condition given by RSM showed that SLC should be processed at oven air velocity, SLC sample thickness and oven temperature of 3 m/s, 3 mm and 60 degrees C, respectively to give an EMD of 2.75E-08. The validated SLC optimum drying condition was 2.69E-0 08. The certainty of achieving the experimental data range was 99.831%. The EMD of SLC drying process had + 80.4%,-16.2% and + 3.4% sensitivity to oven temperature, sample thickness and air velocity, respectively. These results are useful for the economic utilization of SL and will also assist in energy economics and product standardization during drying processing of SLC. (C) 2021 The Authors. Published by Elsevier B.V. on behalf of African Institute of Mathematical Sciences / Next Einstein Initiative.
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页数:10
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