Đồ án tốt nghiệp - Evaluation of physicochemical, mechanical properties, and fruit POADASAADASF

HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY
AND EDUCATION
FACULTY OF INTERNATIONAL EDUCATION

GRADUATION PROJECT
ID: 2024-20116160

EVALUATION OF PHYSICOCHEMICAL
PROPERTIES, MECHANICAL PROPERTIES, AND
FRUIT PRESERVATION OF ACETYLATED
DISTARCH ADIPATE STARCH AND ACETYLATED
DISTARCH ADIPATE STARCH FILMS
Khổng Chơn Thức
Student ID: 20116160
Nguyễn Võ Thanh Mai
Student ID: 20150080
Major: CÔNG NGHỆ THỰC PHẨM
Supervisor: Assoc. Prof. Dr Trịnh Khánh Sơn
Engr. Phùng Trung Dũng

Ho Chi Minh City, January 2025

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THE SOCIALIST REPUBLIC OF VIETNAM

Independence – Freedom– Happiness


Ho Chi Minh City, January, 2025

GRADUATION PROJECT ASSIGNMENT
Student name: Khổng Chơn Thức
Student name: Nguyễn Võ Thanh Mai
Major: Food Technology

Student ID: 20116160
Student ID: 20150080
Class: 20116CLA2

Supervisor: Assoc.Prof. Dr Trịnh Khánh Sơn
Engr. Phùng Trung Dũng

Phone number: 0935133734

Date of assignment: December 12th, 2023

Date of submission: January 13th, 2025

1. Project title: Evaluation of physicochemical properties, mechanical properties, and fruit
preservation of acetylated distarch adipate starch and acetylated distarch adipate starch films
2. Initial materials provided by supervisor: Native tapioca starch
3. Content of the project: Evaluate the effects of adipic acid quantity and modification time on
tapioca starch and films made from acetylated distarch adipaye starch through the physicochemical
and mechanical properties. Research and evaluate the fruit preservation effectiveness of acetylated
distarch adipate starch films.
4. Final product: Acetylated distarch adipate starch and acetylated distarch adipate starch films.
CHAIR OF THE PROGRAM
(Sign with full name)

SUPERVISOR
(Sign with full name)

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ACKNOWLEDGEMENTS
We would like to express my sincere gratitude to all those who have supported and
contributed to the research and writing of this thesis.
First and foremost, we extend my deepest appreciation to Assoc. Prof. Dr. Trinh Khanh Son
for providing invaluable guidance, encouragement, and support throughout this research
endeavor. I am grateful for his expert advice and valuable suggestions, which have been
instrumental in shaping my ideas and refining this thesis.
We also wish to express my special thanks to Eng. Phung Trung Dung for his assistance,
insightful feedback, and collaborative spirit during discussions and data analysis.
We acknowledge and appreciate the presence of two laboratory assistants, Nguyen Hoang
Ph
...

...
andard
Error
0.8115

95% CI
Low
2.40

95% CI
VIF
High
6.57

1.11 1

0.6458

-0.5505

2.77 1.0000

0.6458
0.7910
0.9939
0.9939

0.2487
-1.34
-0.2679
5.42

3.57 1.0000
2.73 1.0000
4.84 1.08
10.53 1.08

1.91
0.6957
2.29
7.98

1
1
1
1

86

Appendixes 44. Predicted and actual of swelling power of film
Design-Expert® Software

Predicted vs. Actual

20

Solubility of films
(adjusted for curvature)
Color points by value of

15

Yield stress khi tăng shear rate:
82.199

Predicted

56.6

10

5

3

0

0

5

10

15

20

Actual

Appendixes 45. Anova for quadratic model of light transmittance of film
Source

Sum of Squares df Mean Square F-value p-value
Model
32.51 5
6.50 24.27 0.0016 significant
A-cross linking agent
0.1357 1
0.1357 0.5062 0.5086
B-reaction time
0.0090 1
0.0090 0.0336 0.8617
AB
0.7192 1
0.7192
2.68 0.1623
A²
8.35 1
8.35 31.16 0.0025
B²
15.07 1
15.07 56.23 0.0007
Residual
1.34 5
0.2680
Lack of Fit
1.34 3
0.4466
Pure Error
0.0000 2
0.0000
Cor Total
33.85 10
Appendixes 46. Fit statistic of light transmittance of film
Std. Dev. 0.5177 R²
0.9604
Mean
17.22 Adjusted R²
0.9208
C.V. %
3.01 Predicted R²
0.6377
Adeq Precision 12.7311

87

Appendixes 47. Coefficient in terms of cooded factor of light transmittance of film
Factor
Intercept
A-cross linking
agent
B-reaction time
AB
A²
B²

Coefficient
df
Estimate
19.54 1

Standard
Error
0.2656

95% CI
Low
18.85

95% CI
VIF
High
20.22

0.1504 1

0.2113

-0.3929

0.6936 1.0000

0.0388
-0.4240
-1.82
-2.44

0.2113
0.2588
0.3252
0.3252

-0.5045
-1.09
-2.65
-3.27

0.5820 1.0000
0.2413 1.0000
-0.9794 1.08
-1.60 1.08

1
1
1
1

Appendixes 48. Predicted and actual of light transmittance of film
Predicted vs. Actual

Light transmittance of film
20

3

Color points by value of
19
Yield stress khi tăng shear rate:

56.6

82.199

Predicted

18

17

16

15

14

14

15

16

17

18

19

20

Actual

Appendixes 49. Anova for quadratic model of tensile strength of film

Appendixes 50. Fit statistic of tensile strength of film

88

Appendixes 40. Coefficients In Terms Of Coded Factors Of tensile strength of film

Appendixes 41. Predicted and actual of tensile strength of film

Appendixes 42. Anova for quadratic model of Youngs modulus of film

Appendixes 43. Fit statistic of Youngs modulus of film

89

Appendixes 44. Coefficients In Terms Of Coded Factors Of Youngs modulus of film

Appendixes 45. Predicted and actual of Youngs modulus of film

Appendixes 46. Stress - Strain of films

90

1

2

3

4

5