http://localhost:8081/jspui/handle/123456789/123 Thu, 04 Jun 2026 03:50:24 GMT 2026-06-04T03:50:24Z http://localhost:8081/jspui/handle/123456789/21101 Title: ETHYLENE SCAVENGING ACTIVE NANOCOMPOSITE FILMS BASED ON CORN STARCH-GUM ARABIC WITH SEPIOLITE CLAY FOR FRESH PRODUCE PACKAGING Authors: Upadhyay, Aakash Abstract: Present study explores the development of ethylene scavenging active food packaging films based on corn starch (CS) gum arabic (GA) nanocomposite incorporated with different sepiolite clay(SP) concentrations (0, 3, 5, 10 and 20% w/w) via the solvent casting method. The effects of sepiolite clay on the prepared films were investigated by the optical, chemical, morphology, mechanical, thermal, crystallinity, barrier properties and ethylene scavenging capacity. The scanning electron microscope photographs showed that SP particles evenly distributed in the CS/GA film matrix. The X–Ray diffraction displayed that crystallinity of in the CS/GA/SP films increased with increasing concentration of SP. The addition of SP improved tensile strength (1.65±0.39 to 3.60±0.27 MPa) and elongation at break (8.68±1.00 to 11.43±0.33%) and water vapor permeability of the prepared CS/GA/SP films. The thermal stability of the CS/GA/SP films was also improved with the addition of sepiolite clay upto 20%. The films containing SP at the concentration of 20% showed the highest ethylene scavenging activity (13.8 µL/25 cm2). Results highlight the prospective and capable nature of SP incorporated CS/GA films as possible substitute for active/functional packaging films for ethylene sensitive produce. The active CS/GA/SP films showed great potential as environmentally friendly active packaging materials for fresh produce packaging. Tue, 01 Jun 2021 00:00:00 GMT http://localhost:8081/jspui/handle/123456789/21101 2021-06-01T00:00:00Z http://localhost:8081/jspui/handle/123456789/21092 Title: LEVERAGING SUSTAINABILITY USING HMA FOR CASE SEALING OF CFB BOXES TO REDUCE THE DAMAGES IN THE SUPPLY CHAIN Authors: Gajanan, Alamwar Vivek Abstract: Packaging plays a vital role in transferring the product safely from the manufacturing unit to the customer doorstep. In the industry, corrugated fiberboard (CFB) boxes are the first choice for tertiary packaging. Lightweight, high strength to weight ratio, economical, environmentally friendly and ergonomic design makes corrugated boxes ideal for packaging. Also, the use of CFB boxes as a packaging material fulfils the triple bottom line of sustainability, i.e., economic, environmental, and social. In this thesis detailed study of corrugated boxes is conducted, i.e. the critical factors responsible for damage to CFB boxes enlisted and coupled with the existing supply chain. Finally face box compression test (BCT) experiment is conducted to compare the strength of hotmelt adhesive (HMA) sealed boxes with tape sealed boxes. This work aimed to study the corrugated boxes in detail and conduct the appropriate test to test the strength of sealed boxes. The thesis also throws light on sustainability, shows that by using HMA for case sealing of boxes, it is possible to reduce the single-use plastic (Tape, plastic strap, stretch wrap, etc.) and reduce the wastage due to damages in the supply chain, which ultimately leverages the sustainability. HMA sealed and tape sealed boxes are analysed and correlated with force vs. deflection curve to explore the boxes behaviour under load. The force to deflection ratio is used to evaluate the strength of the boxes. Higher load bearing capacity at corresponding lower deflection is the primary interest of the study. The force vs. deflection curve is transferred into a force per deflection ratio vs. time curve for understanding the behaviour of boxes with respect to time. This transfer is used to study the force to deflection ratio at various time intervals. It is found out that, higher force to deflection ratio results in high resistance against externally applied compressive load. The shape and behaviour of curves for HMA sealed boxes and tape sealed boxes have been analysed and discussed in details. Tue, 01 Jun 2021 00:00:00 GMT http://localhost:8081/jspui/handle/123456789/21092 2021-06-01T00:00:00Z http://localhost:8081/jspui/handle/123456789/21091 Title: ACTIVE PACKAGING FOR SHELF-LIFE EXTENSION OF BAKERY PRODUCTS Authors: Sharma, Palak Abstract: In this study antimicrobial biodegradable film from poly (3hydroxybutyrate-co-4hydroxybutyrate), i.e. p(3HB-co-4HB) polymer was developed using thyme essential oil as an antimicrobial agent and analyzed as an active packaging material for shelf-life extension of bread. Solvent castingmethod was adopted for film development. Total bread fungus was targeted and in vitro antimicrobial efficiency of films found out choosing film having 30% (v/w) thyme oil and neat copolymer film as control. It was observed that 30% oil active films extended the shelf-life of bread between 5-10 days (mold growth was observed for control film after 5 days of storage but not for active film). Active films with 10%, 20%, 30% E.O. concentrations were studied for mechanical, thermal, chemical and morphological behaviors. Antimicrobial films yielded decreased tensile strength and modulus while increased % elongation at break. Also, glass transition and melting temperatures, % crystallinity reduced a little. WVTR of active films increased as compared to neat film. Color difference and variation in contact angles were not significant for antimicrobial films when compared to neat film. Fungal growth kept on increasing both for control and active film. On 19th day control plate exhibited mold count of approx. 10 log CFU/ml and 30% oil film had mold count of 9.4 log CFU/ml. Tue, 01 Jun 2021 00:00:00 GMT http://localhost:8081/jspui/handle/123456789/21091 2021-06-01T00:00:00Z http://localhost:8081/jspui/handle/123456789/21090 Title: PINEAPPLE PEEL EXTRACT INCORPORATED POLY (VINYL ALCOHOL)-CORN STARCH ACTIVE FILMS FOR FOOD PACKAGING APPLICATIONS: PREPARATION, CHARACTERIZATION AND ANTIOXIDANT ACTIVITY Authors: Kumar, Pardeep Abstract: This research study explores the fabrication of polyvinyl alcohol (PVOH) and corn starch (ST) with pineapple peel extract (PPE) as a natural antioxidant agent, which is an abundant by product from the food processing industry via casting method. The effects of PPEs concentration (5%, 10%, 15%, and 20%) on the antioxidant capacity, optical, thermal, mechanical, barrier properties, and changes in PVOH-starch molecular structure of PVOH/ST films were investigated. The results revealed that with the increasing concertation of PPEs, prepared films' thickness and water vapor permeability slightly increased. Elongation at break of PVOH/ST films enhanced with PPEs concentration. All PPEs incorporated films exhibited enhanced thermal stability as the degradation occurred above 300 °C. The addition of PPE to PVOH/ST films remarkably increased the antioxidant properties. Finally, prepared PVOH/ST/PPE films demonstrated to be a capable material for developing active biodegradable packaging material due to its proven antioxidant activity and mechanical property, which can be helpful in the packaging of food products that get spoiled due to oxidation reactions. Tue, 01 Jun 2021 00:00:00 GMT http://localhost:8081/jspui/handle/123456789/21090 2021-06-01T00:00:00Z