Reuse of Food Waste and Wastewater as a Source of Polyphenolic Compounds to Use as Food Additives

2020 ◽  
Vol 103 (4) ◽  
pp. 906-914
Author(s):  
Marcella Barbera

Abstract The problem of waste and byproducts generated from agro-industrial activities worldwide is an increasing concern in terms of environmental sustainability. In this ambit, the quantity of food wastes—produced in all steps of the whole food chain—is enormous, and it may be forecasted that food waste could amount to more than 120 billion tonnes by 2020. The reuse of food waste and wastewater as source of polyphenolic compounds could be an interesting discussion in this ambit. In fact, polyphenols obtained in this way might be used for food and non-food purposes by means of new, improved, and safe extraction methods. In light of the opportunity represented by the treatment of agro-industrial waste, different systems concerning the winemaking and olive oil production industries have also been discussed as describing approaches applicable to other sectors. More research is needed before considering recovery of phenolic compounds from wastewater as an economically convenient choice for the food sector.

Author(s):  
Shriram M. Naikare

The food industry generates a huge amount of waste annually around the globe from a variety of sources. Approximately one third of all food produced today goes to landfill as waste. The food waste is not only a humanitarian problem, but also a serious economic and environmental pollution problem. The global volume of food wastage has been reported to around 1.3bn tones worth to about $165 bn. In India, about 40% of the food produced is wasted, which is estimated to about Rs. 50,000 crores worth every year. The important types of food wastes generated are agricultural residue, processed food, fruit and vegetable processing, marine food, dairy processing, meat and poultry, hotel and restaurant, etc. The food industrial waste can be converted into byproducts mainly based on the processing of fruits and vegetables and allied food manufacturing, supply and distribution, livestock feed, using it as source of bioactive compounds, useful bioenergy production, artificial fertilizer and decomposed manure, a variety of chemicals, antioxidant, nutraceuticals, etc.


Author(s):  
Shriram M. Naikare

The food industry generates a huge amount of waste annually around the globe from a variety of sources. Approximately one third of all food produced today goes to landfill as waste. The food waste is not only a humanitarian problem, but also a serious economic and environmental pollution problem. The global volume of food wastage has been reported to around 1.3bn tones worth to about $165 bn. In India, about 40% of the food produced is wasted, which is estimated to about Rs. 50,000 crores worth every year. The important types of food wastes generated are agricultural residue, processed food, fruit and vegetable processing, marine food, dairy processing, meat and poultry, hotel and restaurant, etc. The food industrial waste can be converted into byproducts mainly based on the processing of fruits and vegetables and allied food manufacturing, supply and distribution, livestock feed, using it as source of bioactive compounds, useful bioenergy production, artificial fertilizer and decomposed manure, a variety of chemicals, antioxidant, nutraceuticals, etc.


2021 ◽  
Vol 13 (13) ◽  
pp. 7368
Author(s):  
Ngoc-Bao Pham ◽  
Thu-Nga Do ◽  
Van-Quang Tran ◽  
Anh-Duc Trinh ◽  
Chen Liu ◽  
...  

Food waste has become a critical issue in modern society, especially in the urbanized and fast-growing cities of Asia. The increase in food waste has serious negative impacts on environmental sustainability, water and land resources, and food security, as well as climate and greenhouse gas emissions. Through a specific case study in Da Nang City, Vietnam, this paper examines the extent of food waste generation at the consumption stages, the eating habits of consumers, food waste from households and service establishments, as well as prospects for the reuse of food waste as pig feed. The results of this study indicate that per capita food waste generation in Da Nang has increased from 0.39 to 0.41kg in 2016, 0.46 in 2017, and reached 0.52kg in 2018. According to the results of our consumer survey, 20% of respondents stated that they often generate food waste, 67% stated they sometimes do, and 13% stated they rarely do. Furthermore, 66% of surveyed households stated that their food waste is collected and transported by pig farmers to be used as feed for pigs. The use of food waste as feed for pigs is a typical feature in Da Nang. The study also found that there is a high level of consumer awareness and willingness to participate in the 3Rs (reduce, reuse, recycle) program, which was being initiated by the city government. In service facilities such as resorts and hotels, daily food waste reached 100–200 kg in large facilities and 20–120 kg in small facilities. This waste was also collected for use in pig farming. However, there has been a fall in demand for pig feed in line with a decrease in the number of pig farms due to the African swine fever epidemic that occurred during the implementation of this study. This paper suggests that there is a strong need to take both consumer-oriented waste prevention and waste management measures, such as waste segregation at source and introduction of effective food waste recycling techniques, to ensure that food waste can be safely and sustainably used as a “valuable resource” rather than “wasted.”


2021 ◽  
Vol 47 (3) ◽  
pp. 488-498
Author(s):  
Innocent A. Jereme ◽  
Chamhuri Siwar ◽  
Rawshan Ara Begum ◽  
Basri Abdul Talib

Most local authorities in Malaysia spent as much as 60-70 percent of their annual budget to dispose food waste together with other municipal solid wastes to landfills. It is time for Malaysians to start reducing food waste through sustainable method, as it is becoming an uphill task to manage food wastes generated in Malaysia. When households reduce the amount of food waste generated in a sustainable way, it could help reduce cost, and other related bills for households, and as well in running their other daily activities. The main objective of this study is to assess how sociodemographic factors of households in Selangor and Terengganu influence their behaviour towards participation in sustainable food wastes management program. The study applied purposive nonrandom sampling consisting of 333 respondents, 257 were from Selangor and 76 from Terengganu. Primary data was collected through structured questionnaire. Descriptive and logistics regression model analysis were used to analyze the data. Findings have shown 48.7 percent of Terengganu respondents spent not more than RM100 on food per week, while Selangor had 41.2 percent within the same period who spent such amount. 35.4 percent of Selangor respondents spent between RM101-200 compared to Terengganu which spent same amount at 30.3 percent within the same periods. The survey shows 43.2 percent of Selangor households disposed 1-3kg food wastes, while Terengganu on the other hand had 51.3 percent who disposed same quantities of food wastes per week. Respondents with higher education, those on government jobs, small family size and ethnicity have significant impacts on the respondents' behaviour towards participation in sustainable food waste management program. Note: US$1=RM4.09


2015 ◽  
Vol 14 (9) ◽  
Author(s):  
Beata Bilska ◽  
Małgorzata Wrzosek ◽  
Danuta Kołożyn-Krajewska ◽  
Karol Krajewski

2015 ◽  
Vol 76 ◽  
pp. 141-148 ◽  
Author(s):  
Mariana T.C. Machado ◽  
Kaliana S. Eça ◽  
Gláucia S. Vieira ◽  
Florencia C. Menegalli ◽  
Julian Martínez ◽  
...  

Foods ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 843
Author(s):  
Nayely Leyva-López ◽  
Cynthia E. Lizárraga-Velázquez ◽  
Crisantema Hernández ◽  
Erika Y. Sánchez-Gutiérrez

The agroindustry generates a large amount of waste. In postharvest, food losses can reach up to 50%. This waste represents a source of contamination of soil, air, and bodies of water. This represents a problem for the environment as well as for public health. However, this waste is an important source of bioactive compounds, such as phenolic compounds, terpenes, and β-glucans, among others. Several biological activities have been attributed to these compounds; for example, antioxidant, antimicrobial, gut microbiota, and immune system modulators. These properties have been associated with improvements in health. Recently, the approach of using these bioactive compounds as food additives for aquaculture have been addressed, where it is sought that organisms, in addition to growing, preserve their health and become disease resistant. The exploitation of agro-industrial waste as a source of bioactive compounds for aquaculture has a triple objective—to provide added value to production chains, reduce pollution, and improve the well-being of organisms through nutrition. However, to make use of the waste, it is necessary to revalue them, mainly by determining their biological effects in aquaculture organisms. The composition of bioactive compounds of agro-industrial wastes, their biological properties, and their application in aquaculture will be addressed here.


2004 ◽  
Vol 49 (10) ◽  
pp. 147-154 ◽  
Author(s):  
J.-Y. Wang ◽  
O. Stabnikova ◽  
S.T.-L. Tay ◽  
V. Ivanov ◽  
J.-H. Tay

Biotechnology for intensive aerobic bioconversion of sewage sludge and food waste into fertilizer was developed. The wastes were treated in a closed reactor under controlled aeration, stirring, pH, and temperature at 60¡C, after addition of starter bacterial culture Bacillus thermoamylovorans. The biodegradation of sewage sludge was studied by decrease of volatile solids (VS), content of organic carbon and autofluorescence of coenzyme F420. The degradation of anaerobic biomass was faster than biodegradation of total organic matter. The best fertilizer was obtained when sewage sludge was thermally pre-treated, mixed with food waste, chalk, and artificial bulking agent. The content of volatile solid and the content of organic carbon decreased at 24.8% and 13.5% of total solids, respectively, during ten days of bioconversion. The fertilizer was a powder with moisture content of 5%. It was stable, and not toxic for the germination of plant seeds. Addition of 1.0 to 1.5% of this fertilizer to the subsoil increased the growth of different plants tested by 113 to 164%. The biotechnology can be applied in larger scale for the recycling of sewage sludge and food wastes in Singapore.


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