The extensive use of plastic has resulted in negative impacts on the environment. Hence, it is necessary to get environmentally friendly packaging material alternatives to plastic derived from biopolymers. This study aimed to make films from the starch derived from avocado seeds and coconut fiber and determine the mechanical properties of the films. The methods used were extraction of starch from avocado seeds, process of making films and characterization of mechanical properties of films. The raw materials used were variations of starch (2%, 4%, 6%, and 8%), 2 ml of sorbitol, and 1 g of cellulose fiber from coconut. The various tests were conducted to determine mechanical properties of films such as tensile strength, elongation percentage, and elasticity. Test results show the optimum value of tensile strength is 2,016 MPa, the elongation percentage is 12.38% and obtained at the composition of 6% of starch. Thus, it can be concluded that the addition of starch can improve the mechanical properties of films.

1.
M.
Chiumarelli
and
M. D.
Hubinger
, “
Evaluation of edible films and coatings formulated with cassava starch, glycerol, carnauba wax and stearic acid
,”
Food Hydrocoll.
, vol.
38
, pp.
20
27
,
2014
, doi: .
2.
niranjana
, “
A Review on Present Status and Future Challenges of Starch Based Polymer Films and Their Composites in Food Packaging Applications
,”
Polym. Compos.
, vol.
39
,
2018
, doi: .
3.
A.
Valdés
,
M.
Ramos
,
A.
Beltrán
,
A.
Jiménez
, and
M. C.
Garrigós
, “
State of the art of antimicrobial edible coatings for food packaging applications
,”
Coatings
, vol.
7
, no.
4
, pp.
1
23
,
2017
, doi: .
4.
H.
Almasi
,
B.
Ghanbarzadeh
, and
A. A.
Entezami
, “
Physicochemical properties of starch-CMC-nanoclay biodegradable films
,”
Int. J. Biol. Macromol.
, vol.
46
, no.
1
, pp.
1
5
,
2010
, doi: .
5.
P.
Coniwanti
,
L.
Laila
, and
M. R.
Alfira
, “
Pembuatan Film Plastik Biodegredabel Dari Pati Jagung Dengan Penambahan Kitosan Dan Pemplastis Gliserol
,”
J. Tek. Kim.
, vol.
20
, no.
4
, pp.
22
30
,
2014
.
6.
R.
Yulianti
, “
Perbedaan Karakteristik Fisik Edible Film dari Umbi-umbian yang Dibuat dengan Penambahan Plasticizer
,”
J. Penelit. Pertan. Tanam. Pangan
, vol.
31
, no.
2
, pp.
131
136
,
2015
, doi: .
7.
T.
Tesfaye
 et al., “
Valorisation of avocado seeds: extraction and characterisation of starch for textile applications
,”
Clean Technol. Environ. Policy
, vol.
20
, no.
9
, pp.
2135
2154
,
2018
, doi: .
8.
D.
Fu
and
A. N.
Netravali
, “
Green composites based on avocado seed starch and nano- and micro-scale cellulose
,”
Polym. Compos.
, vol.
41
, no.
11
, pp.
4631
4648
,
2020
, doi: .
9.
M. B.
Harahap
and
M. H. S.
Ginting
, “
Production of bioplastic from avocado seed starch reinforced with microcrystalline cellulose from sugar palm fibers
,” no. February 2020,
2018
.
10.
A.
Edhirej
,
S. M.
Sapuan
,
M.
Jawaid
, and
N. I.
Zahari
, “
Effect of various plasticizers and concentration on the physical, thermal, mechanical, and structural properties of cassava-starch-based films
,”
Starch/Staerke
, vol.
69
, no.
1–2
, pp.
1
11
,
2017
, doi: .
11.
S.
Suwanprateep
,
C.
Kumsapaya
, and
P.
Sayan
, “
Structure and Thermal Properties of Rice Starch-based Film Blended with Mesocarp Cellulose Fiber
,”
Mater. Today Proc.
, vol.
17
, pp.
2039
2047
,
2019
, doi: .
12.
H. P. S. Abdul
Khalil
 et al., “
Biodegradable polymer films from seaweed polysaccharides: A review on cellulose as a reinforcement material
,”
Express Polym. Lett.
, vol.
11
, no.
4
, pp.
244
265
,
2017
, doi: .
13.
T.
Bourtoom
,
M. S.
Chinnan
,
P.
Jantawat
, and
R.
Sanguandeekul
, “
Effect of plasticizer type and concentration on the properties of edible film from water-soluble fish proteins in surimi wash-water
,”
Food Sci. Technol. Int.
, vol.
12
, no.
2
, pp.
119
126
,
2006
, doi: .
14.
M.
Sanyang
, “
Effect of plasticizer type and concentration on physical properties of biodegradable films based on sugar palm (arenga pinnata) starch for food packaging
,”
J. Food Sci. Technol.
, vol.
53
, no.
1
, pp.
326
336
,
2016
, doi: .
This content is only available via PDF.
You do not currently have access to this content.