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Table 4 Regression co-efficient results from the data of CCD (central composite design) experiments for GABA (γ-aminobutyric acid) production

From: Optimization and comparison of -aminobutyric acid (GABA) production by LAB in soymilk using RSM and ANN models

Component Model coefficient Standard error t value P value
Constant −11610.2273 7.0788 −1.6401 0.13201
Glucose (g) 14807.0455 6.1864 2.3935 0.03773
MSG (g) −4357.9545 6.1864 −0.7044 0.49723
IP (days) 344.9384 0.1289 2.6764 0.02324
Glucose × MSG 2020.0000 3.4034 0.5935 0.56602
Glucose × IP −81.2500 0.0709 −1.1459 0.27852
MSG × IP 102.9167 0.0709 1.4515 0.17729
Glucose × glucose −5967.2727 1.9198 −3.1083 0.01109
MSG × MSG 112.7273 1.9198 0.0587 0.95433
IP × IP 127.5000 0.0008 −4.5147 0.00112
  1. MSG monosodium glutamate, IP incubation period
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