Factor

Temperature/˚C

Hour/h

m_starch:m_cat4

Esterification rate/%

Experiment 1

180

8

1:1

89.11

Experiment 2

180

10

2:1

89.68

Experiment 3

180

12

3:1

91.26

Experiment 4

200

8

2:1

90.1

Experiment 5

200

10

3:1

83.84

Experiment 6

200

12

1:1

90.53

Experiment 7

220

8

3:1

86.9

Experiment 8

220

10

1:1

91.93

Experiment 9

220

12

2:1

87.81

Average 1

90.017

88.703

90.523

Average 2

88.157

88.483

89.197

Average 3

88.880

89.867

87.333

Standard deviation

1.860

1.384

3.190