scholarly journals Using local micro-biota to extract biodegradable plastics from food waste through a natural fermentation process

2021 ◽  
Vol 83 (2) ◽  
pp. 133-136
Author(s):  
Merhawi K. Tsegay ◽  
L. T. Sukhenko
Keyword(s):  
Lactic Acid ◽  
Food Waste ◽  
Food Production ◽  
Management Practices ◽  
Detrimental Effect ◽  
Condensation Reaction ◽  
Waste Sample ◽  
Production Wastes ◽  
Optimal Temperature Range ◽  
Urgent Action

The main problems of mankind in recent decades are the accumulation of various industrial, agricultural, and food production wastes. Their ineffective disposal and management practices have a detrimental effect on human health and cause environmental pollution, which requires urgent action. Food waste has become a complex phenomenon lately, attracting the attention of scientists, consumers, and activists. This study aims to apply the biotechnology of converting food waste into crystals of polylactic acid (PLA), a monomer for biodegradable plastic. A food waste sample is taken from the student canteen; wash, to remove impurities and fermentation of carbohydrate waste by autotrophic lactic acid bacteria in a natural process for about seven days in the optimal temperature range. Finally, lactic acid molecules polymerized by condensation reaction to form poly L-lactic acid (PLA) crystals, and then a biodegradable bioplastic.

Impact of storage duration and micro-aerobic conditions on lactic acid production from food waste

2021 ◽  
Vol 323 ◽  
pp. 124618
Author(s):  
Zengshuai Zhang ◽  
Panagiotis Tsapekos ◽  
Merlin Alvarado-Morales ◽  
Irini Angelidaki
Keyword(s):  
Lactic Acid ◽  
Food Waste ◽  
Acid Production ◽  
Lactic Acid Production ◽  
Storage Duration ◽  
Aerobic Conditions

scholarly journals Integrated weed management practices and sustainable food production among farmers in Kwara State, Nigeria

2021 ◽  
Vol 6 (1) ◽  
pp. 124-134
Author(s):  
Emmanuel Oyamedan Imoloame ◽  
Ibrahim Folorunsho Ayanda ◽  
Olayinka Jelili Yusuf
Keyword(s):  
Weed Management ◽  
Food Production ◽  
Management Practices ◽  
Sampling Technique ◽  
Structured Interview ◽  
Integrated Weed Management ◽  
Sustainable Food ◽  
Arable Crops ◽  
Multi Stage ◽  
Self Sufficiency

Abstract A survey was conducted in the Kwara State of Nigeria to study the integrated weed management (IWM) practices by farmers. This was in view of the poor weed management practices adopted by farmers, which is a major factor responsible for low yields of many arable crops in Kwara State. A multi-stage sampling technique was used to select a sample size of 480 respondents, and a structured interview schedule was used to elicit information from them. Data obtained were analyzed using descriptive statistics. Factor analysis was also carried out to examine the perception of farmers’ benefits of IWM. Results showed that the majority of farmers (29.4%) were youths, married (89.1%), and involved in medium-scale farming (47.2%). Furthermore, 50.8% of the farmers had primary or secondary education. Although farmers use different weed control methods, more than half of them (54.7%) use herbicides. Most farmers (92.6%) are engaged in the use of IWM, However, 73.5% of them use a combination of herbicides and hoe weeding. Although not properly practiced, farmers perceived IWM as having socio-environmental (29.229%) and techno-efficacious (23.495%) benefits over either hoe weeding or herbicides used alone. The findings suggest a need to train farmers on all aspects of IWM to achieve self-sufficiency in food production in Kwara State.

Application of lactic acid derived from food waste on pathogen inactivation in fecal sludge: a review on the alternative use of food waste

2018 ◽  
Vol 33 (4) ◽  
pp. 423-431 ◽  
Author(s):  
Emmanuel Alepu Odey ◽  
Bodjui Olivier Abo ◽  
Zifu Li ◽  
Xiaoqin Zhou
Keyword(s):  
Lactic Acid ◽  
Food Waste ◽  
Crop Production ◽  
Environmental Problems ◽  
Fermented Food ◽  
Population Increase ◽  
Waste Generation ◽  
Pathogen Inactivation ◽  
Nutrient Runoff ◽  
Fecal Sludge

Abstract Food waste generation and disposal have led to several environmental problems, especially in developing countries. This phenomenon is partly because most cities rapidly urbanize, which results in population increase, urban settlement and waste generation. Improper management of waste has continued to create environmental problems. These problems have indeed interfered with the inadequate measures in managing other organic waste such as food waste. Food waste can be fermented and used for pathogen inactivation in fecal sludge (FS). The continual decrease in global crop production due to soil erosion, nutrient runoff and loss of organic matter has generated interest in using FS for soil amendment. However, due to the high number of pathogens in FS that are harmful to humans, FS must be treated before being used in agriculture. Thus, given the high amounts of food waste generated globally and the lactic acid potential of fermented food waste, several researchers have recently proposed the use of fermented food waste to suppress pathogens in FS. This review presents the various approaches in pathogen inactivation in FS using different types of food waste. On the basis of the literature review, the major problems associated with the generation, collection and application of food waste in pathogen inactivation in FS are discussed. Moreover, the trends and challenges that concern the applicability of each method are critically reviewed.

scholarly journals SUSTAINABLE FOOD WASTE MANAGEMENT IN HOTELS: CASE STUDY LANGKAWI UNESCO GLOBAL GEOPARK

2017 ◽  
Vol 15 (4) ◽  
Author(s):  
Saraswathy Kasavan ◽  
Ahmad Fariz Mohamed ◽  
Sharina Abdul Halim
Keyword(s):  
Waste Management ◽  
Food Waste ◽  
Management Practices ◽  
Well Being ◽  
Food Resources ◽  
Tourism Industry ◽  
Consumption Pattern ◽  
Sustainable Food ◽  
Hotel Sector ◽  
Waste Management Practices

The hotel sector is one of the key players in developing tourism industry in the islands, and contributing towards islands economy, employment opportunities and the overall development. However, food waste generated by hotels has significantly impacted the environment, social well-being and tourism economy. Sustainable food waste management practices are vital among the business operations of the hotel sector to reduce food waste and operational costs through efficient use of food resources. The aim of this paper is to examine current practice of hotel operators towards sustainable food waste management from purchasing of food resources to food wastes disposal. The data was gathered using structured and self-administered questionnaires, which involved 42 hoteliers from the island of Langkawi UNESCO Global Geopark. From the main findings, it was found that there was a lack of emphasis from the hotels on their policy related to wastage of food and unsustainable food consumption pattern by their guests. This reflects on the lack of practices towards sustainable food waste management by the hotel sector. Therefore, planning for sustainable food waste management on island hotels is essential to ensure the protection of environmental resources and to reduce the problem regarding limited capacity landfills on the islands.

Chapter 11. Omics of Lactic Acid Bacteria for Fermented Food Production

2021 ◽  
pp. 271-288
Author(s):  
Monika Yadav ◽  
Ishu Khangwal ◽  
Guddu Kumar Gupta ◽  
Pratyoosh Shukla
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Food Production ◽  
Fermented Food

scholarly journals Exploring Farmers’ Management Practices and Values of Ecosystem Services in an Agroecosystem Context—A Case Study from the Eastern Cape, South Africa

2019 ◽  
Vol 11 (23) ◽  
pp. 6567 ◽  
Author(s):  
Dennis Junior Choruma ◽  
Oghenekaro Nelson Odume
Keyword(s):  
South Africa ◽  
Ecosystem Services ◽  
Food Production ◽  
Management Practices ◽  
Crop Yields ◽  
Management Strategies ◽  
Agricultural Management ◽  
Eastern Cape ◽  
Provisioning Ecosystem Services

Globally, farmers remain the key ecosystem managers responsible for increasing food production while simultaneously reducing the associated negative environmental impacts. However, research investigating how farmers’ agricultural management practices are influenced by the values they assign to ecosystem services is scarce in South Africa. To address this gap, a survey of farmers’ agricultural management practices and the values they assigned towards ecosystem services was conducted in the Eastern Cape, South Africa. Results from the survey show that farmers assign a high value on food provisioning ecosystem services compared to other ecosystem services. Irrigation and fertiliser decisions were mostly based on achieving maximum crop yields or good crop quality. The majority of farmers (86%) indicated a willingness to receive payments for ecosystem services (PES) to manage their farms in a more ecosystems-oriented manner. To encourage farmers to shift from managing ecosystems for single ecosystem services such as food provision to managing ecosystems for multiple ecosystem services, market-oriented plans such as PES may be employed. Effective measures for sustainable intensification of food production will depend on the inclusion of farmers in the development of land management strategies and practices as well as increasing farmers’ awareness and knowledge of the ecosystem services concept.

Lactic acid bacteria modulate organic acid production during early stages of food waste composting

2019 ◽  
Vol 687 ◽  
pp. 341-347 ◽  
Author(s):  
Quyen Ngoc Minh Tran ◽  
Hiroshi Mimoto ◽  
Mitsuhiko Koyama ◽  
Kiyohiko Nakasaki
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Organic Acid ◽  
Food Waste ◽  
Acid Production ◽  
Organic Acid Production ◽  
Early Stages
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