polyethylene terephthalate bottles
Recently Published Documents


TOTAL DOCUMENTS

75
(FIVE YEARS 23)

H-INDEX

15
(FIVE YEARS 1)

2021 ◽  
Vol 10 (3) ◽  
pp. 27
Author(s):  
Karishma Jankee

One million plastic bottles is currently consumed every minute in the world. This consumption trend is expected to further increase thereby worsening the problem of plastic pollution across the globe. Mauritius is also not left unaffected by plastic pollution and an increase in consumption of plastic bottles. Although plastic recycling is encouraged on the island, low recycling rate has been recorded (40%). In this context, this research attempts to enhance the solid waste management methods of Mauritius, more specifically in terms of PET beverage bottles, by creating a persuasive technological tool that promotes recycling behavior among the citizens of Mauritius. The persuasive technological tool developed is a mobile application which allows its users to locate their nearest recycling bins while also providing them with facts about the effects and significance of plastic pollution and recycling respectively. The tool also included a survey page for gathering data on demographic, the recycling attitude/ behavior of the users prior to and after the introduction of the tool and on the functionalities of the tool itself. The results showed that the tool helped 80% of the users in initiating their recycling activities while the rest reported that the tool helped them increase those activities.


2021 ◽  
Vol 37 (70) ◽  
pp. e1111507
Author(s):  
Emmanuel Raufflet

The 70th issue of the Journal Cuadernos de Administración in its 45th anniversary is a special issue on the Circular Economy. The guest editors called for and reviewed papers and made an initial manuscript selection, defined arbitrators and assigned them papers, reviewed the arbitrators’ first-round opinion, forwarding their comments to the referees, and reviewed second-round opinions, and forwarded their comments to the authors for a final version and selecting the articles to be published in this special issue. This rigorous process gave us the six papers that we shall introduce below, not without first thanking all the authors from different countries who sent us their manuscripts and thanking the international and Colombian referees who undertook the academic task of making the assessments. The first article is entitled” Value creation under circular economy practices in the production of viche,” and it is a review of scientific literature wherein the authors propose the concept of the circular economy for the agri-food sector in search for increased efficiency in the use of resources by companies with closed production cycles. The authors set out to find practices oriented to creating economic and environmental value for the production of viche in the Colombian Pacific. “Colombian public policy strategies: transition to a circular economy” is the title of this issue’s second paper, which seeks to identify Colombian public policy strategies in the process of transitioning to a circular economy. It is a documentary analysis-coupled descriptive research, which analyzed the Colombian entities linked to this type of public policies, and found, among other things, the need for further articulation in their implementation for better effectiveness in different dimensions. The third paper hereof is “Circular economy business model: COANIQUEM solidarity store case,” wherein the authors start from a concern about waste and cooperation to achieve sustainable development and intend to understand stakeholders’ social behavior in a solidarity shop. This is an exploratory case study under qualitative methods in the Chilean COANIQUEM solidarity store. Its contribution is to become a study of circular economy strategies at the level of non-governmental organizations. “The Circular Economy of PET bottles in Colombia” is the title of the fourth article in this issue. Therein, the authors propose a characterization of the Circular Economy strategy for PET (Polyethylene Terephthalate) bottles in Colombia. The work is carried out under a descriptive methodology coupled with content analysis and in-depth interviews. The fifth article to this issue is entitled “Conceptual contributions of the social and solidarity economy to the Circular Economy.” Its author makes a reflection based on an analytical perspective and a review of the foundations of the Social and Solidarity Economy (“SSE”) with the Circular Economy (“CE”), finding some complementary aspects. Finally, the “Circular economy and reduction of consumption from the decolonial approach” is the last paper in this issue, wherein the authors reflect from the decolonial perspective, proposing an alternative to the circular economy. The authors made a conceptual review of articles published between 1990 and 2020 for a methodology and present the co-occurrence relationships and the visualization of semantic communities. The content of each article is its authors’ responsibility; our purpose at Cuadernos de Administración is to disseminate these research results or authors’ reflections after a rigorous assessment process. We hope that the articles published in the special Circular Economy issue serve our readers’ academic works and research processes in a field of knowledge that, as can be seen, is in the builds and of particular interest nowadays.


2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Mina Zareie ◽  
Azam Abbasi ◽  
Shiva Faghih

Nowadays, fortified vegetable oils with vitamin D3 are widely available in different countries. In this study, the influence of storage conditions including light, air, storage temperature, and time on vitamin D3 retention in fortified canola oil was evaluated. Moreover, a kinetic study on vitamin D3 degradation in the oil was done. To this aim, fortified canola oil was prepared at two initial concentrations of 6.87 mg·kg−1 and 13.8 mg·kg−1 and then filled in transparent and dark-brown polyethylene terephthalate bottles at two filling levels of 50% and 100%. Samples were kept in two temperatures of 4°C and room temperature (27°C). The retention of vitamin D3 in different samples showed that the vitamin content was affected by the packaging type, storage temperature, and initial concentration. Vitamin D3 in the samples with a lower concentration of the vitamin which was stored in the refrigerator showed the highest retention (91%) after 70 days of storage, and the samples with higher initial concentration packed in transparent containers which were stored at room temperature (RT) showed the greatest loss (55.6%). Results of the kinetic study also showed that vitamin D3 was affected by storage condition. The half-life of the vitamin D3 differed from 96 to 577 days depending on the storage condition.


Beverages ◽  
2021 ◽  
Vol 7 (2) ◽  
pp. 36
Author(s):  
Katherine A. Thompson-Witrick ◽  
Eric R. Pitts ◽  
John L. Nemenyi ◽  
Drew Budner

This is a literature review of the most commonly available wine packaging categories. This includes glass bottles, polyethylene terephthalate bottles (PET), bag-in-box (BIB), aluminum cans, and Tetra Pak. This review includes a description and history of each category. In addition, the market share and environmental impacts of each category are discussed. Special attention is paid to the reported impact on packaged wine flavor and aroma for each packaging type. Finally, the potential impacts on consumer preference are discussed. While glass is still the dominant packaging material within the wine industry and by consumer demand, economic and environmental concerns are driving the industry and consumers to investigate and adopt alternative packaging materials.


2021 ◽  
Author(s):  
Nouri Dawood Matar

In this thesis a recycling-reuse model is developed and analyzed. Discarded 2L plastic PET (polyethylene terephthalate) bottles are collected from the market. The non-contaminated PET bottles are either remanufactured or used as regrind mixed with virgin PET to produce new bottles to satisfy varying demand. Contaminated bottles are sold to industries using low grade plastic and only badly contaminated bottles go to landfill. Cost of land use and associated environmental damage is calculated as a present worth and charged to the manufacture. Analyses conducted on this model found that the amount of bottles collected had the largest influence on the outcome of the total system unit time cost. Alternative materials to PET that degrade faster are surveyed and used to demonstrate significant reduction in the cost of landfill disposal. Analysis using a minimal market price for remanufactured and newly produced bottles resulted in profit.


2021 ◽  
Author(s):  
Nouri Dawood Matar

In this thesis a recycling-reuse model is developed and analyzed. Discarded 2L plastic PET (polyethylene terephthalate) bottles are collected from the market. The non-contaminated PET bottles are either remanufactured or used as regrind mixed with virgin PET to produce new bottles to satisfy varying demand. Contaminated bottles are sold to industries using low grade plastic and only badly contaminated bottles go to landfill. Cost of land use and associated environmental damage is calculated as a present worth and charged to the manufacture. Analyses conducted on this model found that the amount of bottles collected had the largest influence on the outcome of the total system unit time cost. Alternative materials to PET that degrade faster are surveyed and used to demonstrate significant reduction in the cost of landfill disposal. Analysis using a minimal market price for remanufactured and newly produced bottles resulted in profit.


2021 ◽  
Vol 108 (March) ◽  
pp. 1-6
Author(s):  
Girija J ◽  
◽  
Kamalasundari S ◽  

The present study aimed at development of finger millet-based functional beverage mix with 9% green banana flour and 1% ginger powder. The developed beverage mix was packed by using four different packaging materials i.e., low-density polyethylene (P1), standup pouch (P2), aluminium foil pouch (P3) and polyethylene terephthalate bottles (P4) and stored at room temperature. The changes in the physico-chemical, microbial quality were analyzed for 3 months (90 days). The results revealed that during storage, the moisture content was increased from 6.23 to 6.99%, whereas other chemical properties viz., carbohydrate (CHO), protein, fat, ash and dietary fiber were gradually decreased from 68.62 to 68.48, 15.09 to 14.99, 1.50 to 1.48, 3.74 to 3.73 and 2.78 to 2.77 respectively. There was no signifance change in calcium and phosphorus among the packaging materials during storage. The microbial load was low in P3 and P4 packed beverage mix during storage. The functional beverage mix packed in polyethylene terephthalate bottles was undergone minimum changes in physico-chemical characteristics. Hence, it is concluded that the storage of functional beverage mix in polyethylene terephthalate bottles extended the shelf life of the product and reduced the nutrient losses during storage.


Sign in / Sign up

Export Citation Format

Share Document