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The efficacy of natural preservatives in extending the vase life of cut flowers
(2026-01-01)
Bhandari, Nirajan
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Pun, Umed Kumar
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Panth, Milan
The cut flower business has been growing rapidly worldwide, with a positive and significant impact on the economies of many countries. Maintaining quality and extending the vase life of cut flowers are crucial aspects of the floral industry. Synthetic preservatives (silver nitrate, silver thiosulfate, nano-silver, hydroxy quinoline, thiabendazole, and aluminum compounds) have been commercially used in the vase to maintain the quality and longevity of cut flowers for a long time. However, these preservatives may persist in the environment, causing severe health hazards and environmental pollution, and are also expensive. Therefore, cut flower industries seek low-cost, eco-friendly, and safer alternatives. In this context, natural preservatives (NPs), including plant extracts (PEs) and essential oils (EOs), offer a promising and sustainable alternative to synthetic preservatives in the vase. This review highlights the potential NPs and their role in enhancing the quality and vase life of cut flowers. We discussed how these preservatives exert their beneficial effects, such as inhibiting microbial growth, reducing ethylene production, and enhancing water uptake, and also explored the potential issues associated with them. We conducted a structured literature review and summarized the most commonly used EOs and PEs, their optimal dosages, efficacy, and combinations, and concluded with future directions to enhance the vase life of cut flowers sustainably.
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Circular economy: the properties of fiber from Sansevieria stuckyi god–leb. Applied to green textile innovation based on eco-friendly local wisdom
(2026-01-01)
Yabdee, Sudakan
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Kijmongkolvanich, Sirisyos
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Egwutvongsa, Songwut
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Piromgarn, Thanate
This mixed-method research examined the physical properties of Sansevieria stuckyi God–Leb. fiber for textile product design using a tensile testing machine, with the results subjected to multiple regression analysis (MRA) and exploratory factor analysis (EFA). Four factors were considered for textile product designs, including (1) local wisdom, (2) local economy, (3) creative economy, and (4) environmental sustainability. Sansevieria stuckyi God–Leb. fibers blended with rayon and cotton were optimal for the development of textile products. The fiber designs enhanced the quality of woven fabrics in the local community and promoted public interest in economic, cultural, and environmental opportunities through new textile products that align with the 21<sup>st</sup> century.
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Development of a Low-Cost Automated Injection Molding Device for Sustainable Plastic Recycling and Circular Economy Applications
(2024-12-01)
Sinchai, Ananta
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Boonyang, Kunthorn
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Simmala, Thanakorn
In response to the critical demand for innovative solutions to tackle plastic pollution, this research presents a low-cost, fully automated plastic injection molding system designed to convert waste into sustainable products. Constructed entirely from repurposed materials, the apparatus focuses on processing high-density polyethylene (HDPE) efficiently without hydraulic components, thereby enhancing eco-friendliness and accessibility. Performance evaluations identified an optimal molding temperature of 200 °C, yielding consistent products with a minimal weight deviation of 4.17%. The key operational parameters included a motor speed of 525 RPM, a gear ratio of 1:30, and an inverter frequency of 105 Hz. Further tests showed that processing temperatures of 210 °C and 220 °C, with injection times of 15 to 35 s, yielded optimal surface finish and complete filling. The surface finish, assessed through image intensity variation, had a low coefficient of variation (≤5%), while computer vision evaluation confirmed the full filling of all specimens in this range. A laser-based overflow detection system has minimized material waste, proving effective in small-scale, community recycling. This study underscores the potential of low-cost automated systems to advance the practices of circular economies and enhance localized plastic waste management. Future research will focus on automation, temperature precision, material adaptability, and emissions management.
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Electrospun Cyclodextrin/Poly(L-lactic acid) Nanofibers for Efficient Air Filter: Their PM and VOC Removal Efficiency and Triboelectric Outputs
(2023-02-01)
Wanwong, Sompit
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Sangkhun, Weradesh
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Jiamboonsri, Pimsumon
In this work, PLLA and CD/PLLA nanofibers were fabricated using electrospinning and utilized as a particulate matter (PM) and volatile organic compounds (VOCs) filter. The electrospun PLLA and CD/PLLA were characterized with various techniques, including SEM, BET, FTIR, XRD, XPS, WCA, DSC, tensile strength testing, PM and VOCs removal efficiency, and triboelectric performance. The results demonstrated that the best air filter was 2.5 wt%CD/PLLA, which performed the highest filtration efficiencies of 96.84 ± 1.51% and 99.38 ± 0.43% for capturing PM<inf>2.5</inf> and PM<inf>10</inf>, respectively. Its PM<inf>2.5</inf> removal efficiency was 16% higher than that of pure PLLA, which were contributed by their higher surface area and porosity. These 2.5 wt%CD/PLLA nanofibers also exhibited the highest and the fastest VOC entrapment. For triboelectric outputs, the 2.5 wt%CD/PLLA-based triboelectric nanogenerator provided the highest electrical outputs as 245 V and 84.70 μA. These give rise to a three-fold enhancement of electrical outputs. These results indicated that the 2.5 wt%CD/PLLA can improve surface charge density that could capture more PM via electrostatic interaction under surrounding vibration. Therefore, this study suggested that 2.5 wt%CD/PLLA is a good candidate for a multifunction nanofibrous air filter that offers efficient PM and VOC removal.
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Eco-Friendly and Community Sustainable Textile Fabric Dyeing Methods From Thai Buffalo Manure: From Pasture to Fashion Designer
(2021-01-01)
Bureekhampun, Suthasini
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Maneepun, Chanida
The research objective was to study local traditional wisdom of the art of producing fabric dye from fresh buffalo manure (FBM). Data were collected from rural weaving community cooperative (co-op) members and experts in Thailand’s northeastern Mekong River province of Nakhon Phanom. The study’s Method 1 added buffalo dung water, salt, and a mordant together, which was brought to a boil for 30 minutes. Method 2 added buffalo dung water and salt, which was brought to a boil for 10 minutes, after which a mordant agent was added, then boiled for an additional 30 minutes. There were five different formulas for each method using a different mordant. Results revealed that Method 1 had the best dyeing solution and produced a consistent, commercially usable, washable fabric with three-tone coloring and long-lasting yarn. Method 1 also used a hot dyeing technique in which cotton yarn and FBM were disinfected in a boiling vat while natural odor-reducing additives were added. Moreover, Method 1 consisted of either (1) FBM, salt, and lye, (2) FBM, salt, and muddy water, or (3) only salt added to FBM. These three solutions yielded a material in which testing by the Thailand Textile Institute (THTI) using ISO standards was determined to have a moderate degree of lightfastness, as well as an excellent resistance to color fading after washing. The study is important as it adds a wealth of knowledge to the literature concerning eco-friendly eco-fashion, sustainable products, and economically viable traditional handicraft textile production techniques.

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