The Performance and Characterization of Biodegradable Plastic from Tapioca Starch: Effect of Modified Chitosan

Thermoplastic agar/chitosan blend was prepared by a rheomix process, and the effect of concentration agar: chitosan on the material properties forms were investigated. This research aimed to observe the physical properties of bioplastic agar/chitosan produced through rheomix. Bioplastic was produced by mixing 65 % solid material (agar: chitosan) and 35% glycerol, the ration through the melting process at an initial temperature of 100°C. The weight ratio of agar : chitosan was 65% : 0% (F0/control), 52% : 13% (F1), 39 % : 26% (F2), 26 %: 39% (F3). The tensile strength and elongation of bioplastic were decrees with a higher chitosan concentration. The color and the opacity of bioplastic were affected by the ratio of agar: chitosan. The moisture content and the water vapor transmission rate (WVTR) of bioplastic were increased by increasing the chitosan ratio. The SEM micrograph of bioplastic showed that the blend agar and chitosan seem to have a rough and inhomogeneous surface than pure bioplastic agar. The best blend was bioplastic with agar: chitosan 52%: 13% (F1), which have properties of : tensile strength 4.95 ± 0.56 MPa, elongation at break 34.94 ± 0.99 %, moisture content 15.33 ± 0.43%, WVTR 3259.39 ± 28.12 g/m2.24 h.

Section: Ftir Spectroscopy Of Bioplastic Agar/chitosanmentioning

confidence: 99%

Physical properties of bioplastic agar/chitosan blend

Agusman

Fransiska

Murdinah

et al. 2022

“…The type of starch source, starch content, and additives such as plasticizers and fillers all have an impact on how well tensile strength in bioplastics demonstrates its properties. Glycerol is the most widely used plasticizer because it has the best interaction ability when combined with different types of starch, with or without fillers [22]. The type and concentration of plasticizer have a significant impact on the bioplastic's tensile strength when stretched.…”

Section: Tensile Strength Of Bioplastics With the Addition Chitosan C...mentioning

confidence: 99%

“…The fracture surface has some voids (black dots), which contributes to the low impact and tensile strength. Ernita et al [22] examined the SEM results for the use of various fillers. Figure 2 shows white granules that are less homogeneous in comparison to the other materials.…”

Section: The Morphology Of Bioplasticsmentioning

confidence: 99%

The role of various plastisizers and fillers additions in improving tensile strength of starch-based bioplastics: A mini review

Safitri

Sinaga

Nasution

et al. 2022

The general public uses plastic extensively, particularly in food packaging. Plastic raw materials are generally petroleum derivatives with advantages such as high tensile strength, low cost, lightweight, ease of manufacture, and application. However, there are other disadvantages to plastic, which is not easily biodegradable. As a result, researchers have expressed a strong desire to develop biodegradable plastics in order to reduce the accumulation of non-biodegradable plastics in the environment. One of the candidates for producing bioplastic using natural resources is biodegradable plastics. Bioplastics based on starch are a common material used in the production of bioplastics. However, because bioplastics have lower tensile properties than conventional plastics, fillers are used to increase the strength of bioplastics. Fillers are used to reduce plastic cost, shrinkage during the setting process, and to improve tensile strength and hardness. As a result, the tensile and morphology of several starch-based biodegradable plastics with chitosan, CMC fiber, and clay as fillers will be reported in this review. According to our mini-review, sorbitol and CMC are very good plasticizers for starch-based bioplastics, and CMC has a higher crystallinity form, promoting greater interaction between the cellulose chains and starch-based matrix.

“…These materials can be used as a matrix in biodegradable plastic and can be modified by adding natural antioxidants from various sources. Apart from that, chitosan also often functions as a natural antioxidant [9]. Plastic is usually widely used for packaging foods such as cereals, fruit, meat, fish or processed foods.…”

Section: Introductionmentioning

confidence: 99%

Biodegradable plastics with natural antioxidant: A Review

Lisdayana,

Rajabiah,

Mahendra

et al. 2024

Food spoilage is a negative change that occurs physically, chemically and microbiologically in food whether it is still fresh or has become a processed product. Oxidative reactions can cause color changes, decreased nutritional value, changes in odor and unpleasant taste, so antioxidants are needed to avoid this. The aim of this review is to examine a number of natural antioxidants that can be used in biodegradable plastics. Biodegradable plastic is a type of plastic that decomposes naturally with the help of microorganisms. The use of biodegradable plastic can be applied to products such as fruit or meat to prevent oxidation. Inhibition of oxidation in food ingredients greatly influences the quality and appearance of food ingredients. Apart from that, it is also beneficial for nutrition and increases the shelf life of the product. Antioxidants can be obtained synthetically or naturally. Natural antioxidants are prioritized by researchers for study because of their safety in use and no health side effects if consumed. Antioxidants are very easy to obtain in plants, either in the form of extracts or in the form of essential oils. Apart from that, natural antioxidants are also often produced from adding chitosan to biodegradable plastic.