scholarly journals Development of Intelligent Food Packaging with Rosa Sp Extract

2019 ◽  
Vol 9 (1) ◽  
pp. 5957-5961
Keyword(s):  
Tensile Strength ◽  
Physical Properties ◽  
Food Packaging ◽  
Petri Dish ◽  
Chitosan Solution ◽  
Starch Solution ◽  
Acid Base ◽  
Biodegradable Film ◽  
Color Changes ◽  
Different Temperatures

Rosa extract containing anthocyanin was integrated into starch-chitosan based film with glycerol as a plasticizer to develop a biodegradable film with acid base dye indicator. Anthocyanin is a pH sensitive compound that changes color when exposed to different pH. The color changes varied depends on the pH. A film aliquot was prepared by mixing rose extract, starch solution, chitosan solution with glycerol. The aliquot was casted in a petri dish at 40°C for 2days. Several tests were done to determine the biological, chemical and physical properties of the film. The tensile strength of the film was found to be in the range of 4.17MPa and 5.42MPa. The film was placed at 2 different temperatures for 4 days to determine the performance of the films and the effects of the temperature towards the film.

scholarly journals Evaluation of the effects of additives on the properties of starch-based bioplastic film

2021 ◽  
Vol 3 (4) ◽  
Author(s):  
Olugbenga O. Oluwasina ◽  
Bolaji P. Akinyele ◽  
Sunday J. Olusegun ◽  
Olayinka O. Oluwasina ◽  
Nelcy D. S. Mohallem
Keyword(s):  
Tensile Strength ◽  
Food Packaging ◽  
Surface Topology ◽  
Root Mean Square Roughness ◽  
Starch Solution ◽  
Dialdehyde Starch ◽  
Force Microscopy ◽  
Silica Solution ◽  
The One ◽  
Bioplastic Film

AbstractThe adverse environmental effects of petroleum-based packaging plastics have necessitated the need for eco-friendly bioplastics. Most bioplastics are starch-based and are not without drawbacks, hence there is the need for their properties to be improved. In this study, the effect of varying concentrations of dialdehyde starch and silica solutions on the physical, mechanical, biodegradable, surface topology, and thermal properties of the bioplastic films was examined. The additive concentrations were varied from 60 to 100%. The bioplastic films produced with dialdehyde starch solution recorded better moisture content (6.62–11.85%), bioplastic film solubility (4.23–7.90%), and tensile strength (1.63–3.06 MPa), against (11.24–14.26%), (7.77–19.27%) and (0.53–0.73 MPa) respectively for bioplastic films produced with silica solution. The atomic force microscopy analysis; root-mean-square roughness, kurtosis, and skewness revealed better miscibility and compatibility between the starch matrix and the dialdehyde solution than between the starch matrix and the silica solution. Bioplastic with added dialdehyde starch solution has better tensile strength and long biodegradability than that with silica solution. The research has demonstrated that bioplastic film produced with starch and dialdehyde starch solution has better properties than the one produced with starch and silica solution. The properties evaluation results of the bioplastic films thus demonstrated their aptness for food packaging applications. Graphic abstract

scholarly journals The Influence of Starch Origin on the Properties of Starch Films: Packaging Performance

Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1146
Author(s):  
Zuzanna Żołek-Tryznowska ◽  
Alicja Kałuża
Keyword(s):  
Tensile Strength ◽  
Free Energy ◽  
Surface Free Energy ◽  
Food Packaging ◽  
Energy Surface ◽  
Free Energy Surface ◽  
Casting Method ◽  
Starch Solution ◽  
Film Properties ◽  
Starch Films

Starch films can be used as materials for food packaging purposes. The goal of this study is to compare how the starch origin influence the selected starch film properties. The films were made from various starches such as that from maize, potato, oat, rice, and tapioca using 50%w of glycerine as a plasticizer. The obtained starch-based films were made using the well-known casting method from a starch solution in water. The properties of the films that were evaluated were tensile strength, water vapour transition rate, moisture content, wettability, and their surface free energy. Surface free energy (SFE) and its polar and dispersive components were calculated using the Owens-Wendt-Rabel-Kaelbe approach. The values of SFE in the range of 51.64 to 70.81 mJ∙m−2 for the oat starch-based film and the maize starch-based film. The films revealed worse mechanical properties than those of conventional plastics for packaging purposes. The results indicated that the poorest tensile strength was exhibited by the starch-based films made from oat (0.36 MPa) and tapioca (0.78 MPa) and the greatest tensile strength (1.49 MPa) from potato.

scholarly journals Synthesis of biodegradable films obtained from rice husk and sugarcane bagasse to be used as food packaging material

2019 ◽  
Vol 25 (4) ◽  
pp. 506-514 ◽  
Author(s):  
Himanshu Gupta ◽  
Harish Kumar ◽  
Mohit Kumar ◽  
Avneesh Kumar Gehlaut ◽  
Ankur Gaur ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Sugarcane Bagasse ◽  
Rice Husk ◽  
Food Packaging ◽  
Packaging Material ◽  
Biodegradable Films ◽  
Biodegradable Film ◽  
Biocomposite Film ◽  
Biopolymer Film ◽  
Lignocellulose Biomass

The current study stresses on the reuse of waste lignocellulose biomass (rice husk and sugarcane bagasse) for the synthesis of carboxymethyl cellulose (CMC) and further conversion of this CMC into a biodegradable film. Addition of commercial starch was done to form biodegradable film due to its capacity to form a continuous matrix. Plasticizers such as Glycerol and citric acid were used to provide flexibility and strength to the film. Biopolymer film obtained from sugarcane bagasse CMC showed maximum tensile strength and elongation in comparison to the film synthesized from commercial CMC and CMC obtained from rice husk. It has been observed that an increase in sodium glycolate/NaCl content in CMC imposed an adverse effect on tensile strength. Opacity, moisture content, and solubility of the film increased with a rise in the degree of substitution of CMC. Therefore, CMC obtained from sugarcane bagasse was better candidate in preparing biopolymer/biocomposite film.

scholarly journals Physical Properties of Edible Films from Pangasius catfish Bone Gelatin-Breadfruits Strach with Different Formulations

2020 ◽  
Vol 3 (2) ◽  
pp. 42-47
Author(s):  
Rian Adhi Santoso ◽  
Yoni Atma
Keyword(s):  
Tensile Strength ◽  
Water Vapor ◽  
Moisture Content ◽  
Physical Properties ◽  
Food Packaging ◽  
Edible Films ◽  
Fish Bone ◽  
Edible Film ◽  
Japanese Industrial Standard ◽  
Water Vapor Transmission

Abstract— This research aims to provide edible film made from fish bone gelatin of Pangasius catfish mixed breadfruit starch with different formulations. The study was carried out through three stages including breadfruit starch isolation, edible films fabrication and analysis of physical properties of resulted edible film such as thickness, water vapor transmission, tensile strength and percent of elongation as well as moisture content. Edible films which were formulated from fish bone gelatin of Pangasius catfish by breadfruit starch addition have thickness values ranged of ​​0.084-0.123 mm, 6.08 - 16.77% of moisture content, water vapor transmission of 1.07 - 1.60 g/ m²/hour, tensile strength of 0.245 - 1.186 MPa, and percent of elongation around 70 - 87.14%. The edible films from gelatin of Pangasius catfish bone with breadfruit starch addition have physical characteristic which fulfill the standard requirements issued by Japanese Industrial Standard (JIS) Keywords— edible film; biodegradable materials; fish gelatin;breadfruit starch; food packaging    

scholarly journals Physical Properties of Composite Films from Tilapia Skin Collagen with Pachyrhizus Starch and Rambutan Peel Phenolics

Marine Drugs ◽  
2019 ◽  
Vol 17 (12) ◽  
pp. 662
Author(s):  
Yongliang Zhuang ◽  
Shiyan Ruan ◽  
Hanghang Yao ◽  
Yun Sun
Keyword(s):  
Tensile Strength ◽  
Physical Properties ◽  
Food Packaging ◽  
Composite Films ◽  
Water Vapor Permeability ◽  
Amorphous Structure ◽  
Vapor Permeability ◽  
Scanning Calorimetry ◽  
Active Food Packaging ◽  
Skin Collagen

Different composite films composed of tilapia skin collagen (TSC) with Pachyrhizus starch (PS) or rambutan peel phenolics (RPP) were prepared, and the physical properties of these films were determined. The effects of PS and RPP on TSC films were investigated, and our results indicated that PS and RPP could improve the physical properties of TSC films. Opacity and film thickness showed an enhanced trend with increasing PS and RPP contents in TSC films, whereas solubility in water, elongation-at-break (EAB), and water vapor permeability (WVP) showed declining trends. TSC film with 10% PS and 0.5% RPP had the highest tensile strength, and the tensile strength dropped drastically when the content of PS and RPP increased. The light transmittances of the films could decrease with the incorporation of PS and RPP. Differential scanning calorimetry (DSC) demonstrated that the addition of PS and RPP improved the thermal stability of TSC films. In addition, X-ray diffraction indicated that the crystallinity of the films decreased and the amorphous structure of the films tended to become more complex with the addition of PS and RPP. As shown by fourier transform infrared spectroscopy (FTIR) analysis, PS and RPP can strongly interact with TSC, resulting in a modification of its structure. Scanning electron microscope (SEM) analysis showed that there was a good compatibility between TSC, PS, and RPP. The results indicated that TSC film incorporated with 10% PS and 0.5% RPP was an effective method for improve the physical properties of the film. TSC–PS–RPP composite films can be used not only in biomedical applications, but also as active food packaging materials.

scholarly journals PROPERTIES OF EDIBLE FILM FROM MODIFIED SAGO STARCH PRECIPITATED BY BUTANOL

2020 ◽  
Vol 21 (4) ◽  
pp. 164
Author(s):  
Riska Surya Ningrum ◽  
Dewi Sondari ◽  
Putri Amanda ◽  
Bernadeta Ayu Widyaningrum ◽  
Dian Burhani ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Contact Angle ◽  
Tensile Strength ◽  
Food Packaging ◽  
Water Solubility ◽  
Petri Dish ◽  
Edible Films ◽  
Edible Film ◽  
Sago Starch ◽  
Transparent Film

ROPERTIES OF EDIBLE FILM FROM MODIFIED SAGO STARCH PRECIPITATED BY BUTANOL. The edible film is a thin layer that can be used as food packaging and safe for consumption. Starch is a material that can be used as an edible film because it is biodegradable, non-toxic, able to form a strong and transparent film. In this research, sago starch has been precipitated using butanol for 1, 2, 3, 4, and 5 hours. Precipitated sago is reacted with 3% glycerol and then formed into a film by printing it on a petri dish. Characterizations of edible films are FTIR, contact angle, water solubility, swelling power, WVTR, and mechanical properties (thickness, tensile strength, and elongation). Edible film (B2) has the best mechanical properties, that is high hydrophobicity (contact angle is 60,351 degree), tensile strength (6,8843 N/mm2), and elongation (49,5081 %), also low water solubility (0,3352 %), moisture content (18,6005 %), and WVTR (0,02986 g s-1 m-2).

Preparation and Research of KGM/Starch Composite Films

2011 ◽  
Vol 197-198 ◽  
pp. 1163-1166 ◽  
Author(s):  
Huang Lin ◽  
Qing Hua Chen ◽  
Wei Yan Li ◽  
Ming Hua Huang
Keyword(s):  
Tensile Strength ◽  
Food Packaging ◽  
Composite Films ◽  
Xrd Analysis ◽  
Optimal Level ◽  
Casting Method ◽  
Soil Suspension ◽  
Biodegradable Film ◽  
Polyethylene Films ◽  
Fracture Elongation

In this study, composite films were prepared with Konjac glucomannan (KGM) and Starch, In the process of preparation, add Lactic acid as modifier, deal with Ammonia as crosslinker. Pretreatment with microwave, and used solvent (water) casting method to prepare the KGM/starch composite films, and used orthogonal matrix L25 (5,6) to analyze the influencing factors. The results showed that: the tensile strength of films is 7.96~25.68Mpa, and the fracture elongation rate is 1.25~5.00%. It can reach the tensile strength requirements of films for food packaging materials (polyethylene films) and the optimal level is A2B4C3D3. By XRD analysis, KGM/starch composite films showed amorphous. Preliminary degradation experiments shows that the decomposition period of KGM/starch composite films is 2 weeks in the soil suspension. Therefore, KGM/starch composite films are potential biodegradable film materials.

PEMANFAATAN LIMBAH KULIT DURIAN (Durio zibethinus) DAN KULIT CEMPEDAK (Artocarpus integer) SEBAGAI EDIBLE FILM

2014 ◽  
Vol 6 (1) ◽  
pp. 27 ◽  
Author(s):  
Desi Mustika Amaliyah
Keyword(s):  
Tensile Strength ◽  
Food Packaging ◽  
Raw Materials ◽  
Edible Films ◽  
Edible Film ◽  
Durio Zibethinus ◽  
Yield Result ◽  
Pre Treatment

Durian (Durio zibethinus) and cempedak (Artocarpus integer) peels waste are not used by the society. The research aim is to extract pectin from durian and cempedak peels and to formulate the pectin into edible films for food packaging. The research stages were first pre-treatment of durian and cempedak peels, pectin extraction, pectin drying, and  pectin application as edible films with concentration of 0%, 5%, and 15%. Based on this research it was concluded that pectin can be extracted from durian and cempedak peels with yield result of 27.97 % and 55.58 %, respectively. Edible film obtained has  similar characteristics between raw materials cempedak and durian peels. The higher concentration of cempedak peel  pectin increased the thickness, but decreased the tensile strength and elongation at a concentration of 15%. While in edible films from durian peel pectin, the higher concentration of pectin decreased the thickness of edible film on pectin concentration of 15%, lowered tensile strength and raised the edible film elongation.Keywords: waste, durian, cempedak, pectin extraction, edible film

SINTESIS DAN MODIFIKASI STRUKTUR DAN PORI MEMBRAN KITOSAN TERCROSSLINK UNTUK STERILISASI MEDIA PERTUMBUHAN BAKTERI

2019 ◽  
Vol 3 (2) ◽  
pp. 27
Author(s):  
Emma Savitri ◽  
Natalia Suseno ◽  
Tokok Adiarto
Keyword(s):  
Tensile Strength ◽  
Chitosan Solution ◽  
Curing Temperature ◽  
Growth Media ◽  
Optimum Conditions ◽  
Separation Processes ◽  
Crosslinking Process ◽  
Chitosan Membrane ◽  
Chitosan Membranes ◽  
Crosslinked Chitosan

Many mass-transfer applications have used chitosan membrane in separation processes. This research applied crosslinked chitosan membrane to sterillize bacterial growth media. Chitosan membranes having 79 % DD were produced by casting and drying chitosan solution. The images of the membrane were characterized by SEM and other characterizations such as permeability, permselectivity and tensile strength were investigated. The flux increased with longer submersion period but the rejection decreased. Otherwise, the flux decreased and rejection increased in line with an increase in curing temperature. Tensile strength increased with the increase of submersion period and curing temperature. The optimum conditions of crosslinking process are 2 hours of submersion periods and curing temperature at 90 oC.  It gives flux 5.8930 L/jam.m2, rejection 97.47 % and tensile strength 49640 kN/m2

DURIMPHY

Alloy Digest ◽  
2007 ◽  
Vol 56 (2) ◽  
Keyword(s):  
Tensile Strength ◽  
Corrosion Resistance ◽  
Yield Strength ◽  
Physical Properties ◽  
Precipitation Hardening ◽  
Heat Treating ◽  
High Yield ◽  
High Yield Strength ◽  
Precision Alloys ◽  
Very High

Abstract Durimphy is a maraging steel with 1724 MPa (250 ksi) tensile strength and a very high yield strength due to precipitation hardening. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: FE-140. Producer or source: Metalimphy Precision Alloys.

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