scholarly journals Agricultural Residues as a Source of Bioactive Substances—Waste Management with the Idea of Circular Economy

2021 ◽  
Vol 9 (1) ◽  
pp. 2
Author(s):  
Ewelina Gołębiewska ◽  
Monika Kalinowska
Keyword(s):  
Fruit Weight ◽  
Agricultural Residues ◽  
Apple Pomace ◽  
Extraction Techniques ◽  
Promising Technique ◽  
Bioactive Substances ◽  
Food Industries ◽  
Anticancer Properties ◽  
Main Components ◽  
By Products

Every year, the juice industry generates millions of tons of by-products worldwide such as seeds, skins and pomace. This creates significant environmental problems. It is estimated that about 25% of the fruit weight used in juice production is waste. However, even after processing, this waste contains high amounts of valuable bioactive substances. Phenolic compounds and pectin have been found to be the main components of apple pomace and are responsible for its antioxidant, anti-inflammatory, antibacterial, antifungal, and anticancer properties. However, the low bioavailability and sensitivity of some chemicals limit their use in many areas. Advanced extraction techniques and encapsulation of apple pomace extracts is a promising technique to overcome these problems and increasing their applicability (e.g., in the cosmetic, pharmaceutical, or food industries).

scholarly journals Agro-industrial By-Products from Amazonian Fruits: Use for Obtaining Bioproducts

2021 ◽  
Author(s):  
Russany Silva da Costa ◽  
Taís Vanessa Gabbay Alves ◽  
Raimundo Lopes da Silva ◽  
Lindalva Maria de Meneses Costa Ferreira ◽  
Roseane Maria Ribeiro Costa ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Hplc Analysis ◽  
Economic Value ◽  
Bioactive Substances ◽  
Total Polyphenol ◽  
Food Industries ◽  
Cosmetic Industry ◽  
Fruit Processing ◽  
By Products

Fruit processing contributes significantly to the agricultural exportation of the Amazonian; however, it generates large amounts of solid waste, despite its high content of bioactive compounds and nutritional properties, and they are discarded in the environment. Therefore, in order to add economic value and potential reuse of agro-industrial by-products from cocoa, cupuassu, pracaxi, and tucumã, we investigated the chemical characteristics of the seed by-product resulting from the industrial extraction of these oils. The investigation of the nutritional and chemical composition of by-product was submitted to green extraction, besides other qualitative and quantitative techniques for the characterization of the main bioactive compounds. The extracts obtained from these by-products had a significant total polyphenol content and antioxidant activity. HPLC analysis identified and quantified some flavonoids present in these by-products (gallic, caffeic and protocatechuic acid, epigallocatechin-3-gallate, epicatechin, catechin, and quercetin). The oil from these species is widely used in the treatment of skin scarring and inflammation and is also used by the cosmetic industry. These results show that these by-products have a great potential for use, since they still have bioactive substances in their composition, which could alternatively be used in the pharmaceutical, cosmetic, or food industries.

scholarly journals Extraction of Phenolic Compounds and Terpenes from Cannabis sativa L. By-Products: From Conventional to Intensified Processes

Antioxidants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 942
Author(s):  
Emilie Isidore ◽  
Hamza Karim ◽  
Irina Ioannou
Keyword(s):  
Phenolic Compounds ◽  
Cannabis Sativa ◽  
Biological Activities ◽  
Operating Conditions ◽  
Extraction Techniques ◽  
Ultrasound Assisted Extraction ◽  
Assisted Extraction ◽  
Whole Plant ◽  
Conventional Solvent Extraction ◽  
By Products

Cannabis sativa L. is a controversial crop due to its high tetrahydrocannabinol content varieties; however, the hemp varieties get an increased interest. This paper describes (i) the main categories of phenolic compounds (flavonoids, stilbenoids and lignans) and terpenes (monoterpenes and sesquiterpenes) from C. sativa by-products and their biological activities and (ii) the main extraction techniques for their recovery. It includes not only common techniques such as conventional solvent extraction, and hydrodistillation, but also intensification and emerging techniques such as ultrasound-assisted extraction or supercritical CO2 extraction. The effect of the operating conditions on the yield and composition of these categories of phenolic compounds and terpenes was discussed. A thorough investigation of innovative extraction techniques is indeed crucial for the extraction of phenolic compounds and terpenes from cannabis toward a sustainable industrial valorization of the whole plant.

scholarly journals Aloe Vera-Mediated Te Nanostructures: Highly Potent Antibacterial Agents and Moderated Anticancer Effects

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 514
Author(s):  
David Medina-Cruz ◽  
Ada Vernet-Crua ◽  
Ebrahim Mostafavi ◽  
María Ujué González ◽  
Lidia Martínez ◽  
...  
Keyword(s):  
Biomedical Applications ◽  
Aqueous Media ◽  
Aloe Vera ◽  
Multidrug Resistant ◽  
Dermal Fibroblasts ◽  
Anticancer Properties ◽  
Green Approach ◽  
Anticancer Effects ◽  
Synthesis Of Nanomaterials ◽  
By Products

Cancer and antimicrobial resistance to antibiotics are two of the most worrying healthcare concerns that humanity is facing nowadays. Some of the most promising solutions for these healthcare problems may come from nanomedicine. While the traditional synthesis of nanomaterials is often accompanied by drawbacks such as high cost or the production of toxic by-products, green nanotechnology has been presented as a suitable solution to overcome such challenges. In this work, an approach for the synthesis of tellurium (Te) nanostructures in aqueous media has been developed using aloe vera (AV) extracts as a unique reducing and capping agent. Te-based nanoparticles (AV-TeNPs), with sizes between 20 and 60 nm, were characterized in terms of physicochemical properties and tested for potential biomedical applications. A significant decay in bacterial growth after 24 h was achieved for both Methicillin-resistant Staphylococcus aureus and multidrug-resistant Escherichia coli at a relative low concentration of 5 µg/mL, while there was no cytotoxicity towards human dermal fibroblasts after 3 days of treatment. AV-TeNPs also showed anticancer properties up to 72 h within a range of concentrations between 5 and 100 µg/mL. Consequently, here, we present a novel and green approach to produce Te-based nanostructures with potential biomedical applications, especially for antibacterial and anticancer applications.

scholarly journals Apple Pomace as a Source of Bioactive Polyphenol Compounds in Gluten-Free Breads

Antioxidants ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 807
Author(s):  
Dorota Gumul ◽  
Rafał Ziobro ◽  
Jarosław Korus ◽  
Marek Kruczek
Keyword(s):  
Raw Materials ◽  
Apple Pomace ◽  
Total Phenolic ◽  
Gluten Free ◽  
Bioactive Substances ◽  
Free Products ◽  
Total Polyphenol ◽  
Polyphenol Compounds ◽  
High Oxidative Stress ◽  
Vegetables And Fruits

Gluten-free products based on starch and hydrocolloids are deficient in nutrients and do not contain pro-health substances. Therefore, they should be enriched in raw materials naturally rich in antioxidants, especially if they are intended for celiac patients, prone to high oxidative stress. Apart from the traditionally used pseudo-cereals, seeds, vegetables and fruits, innovative substrates such as the by-product (especially in Poland) dry apple pomace could be applied. The study material consisted of gluten-free bread enriched with apple pomace. The content of individual polyphenols, the content of total polyphenol and flavonoids, and also the antioxidant potential of the bread were determined by the UPLC-PDA-MS/MS methods. It was observed that apple pomace was a natural concentrate of bioactive substances from the group of polyphenols. In summary, gluten-free bread with 5% content of apple pomace showed the highest organoleptic scores and contained high levels of phenolic compounds. The values of total phenolic content, and the amounts of flavonoids, phenolic acids and phloridzin in this bread were 2.5, 8, 4 and 21 times higher in comparison to control.

scholarly journals Anthocyanins Recovered from Agri-Food By-Products Using Innovative Processes: Trends, Challenges, and Perspectives for Their Application in Food Systems

Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2632
Author(s):  
Henrique Silvano Arruda ◽  
Eric Keven Silva ◽  
Nayara Macêdo Peixoto Araujo ◽  
Gustavo Araujo Pereira ◽  
Glaucia Maria Pastore ◽  
...  
Keyword(s):  
Food Systems ◽  
Food Industry ◽  
Biological Properties ◽  
Extraction Techniques ◽  
Naturally Occurring ◽  
Current Review ◽  
Natural Colorants ◽  
Conventional Extraction ◽  
The Stability ◽  
By Products

Anthocyanins are naturally occurring phytochemicals that have attracted growing interest from consumers and the food industry due to their multiple biological properties and technological applications. Nevertheless, conventional extraction techniques based on thermal technologies can compromise both the recovery and stability of anthocyanins, reducing their global yield and/or limiting their application in food systems. The current review provides an overview of the main innovative processes (e.g., pulsed electric field, microwave, and ultrasound) used to recover anthocyanins from agri-food waste/by-products and the mechanisms involved in anthocyanin extraction and their impacts on the stability of these compounds. Moreover, trends and perspectives of anthocyanins’ applications in food systems, such as antioxidants, natural colorants, preservatives, and active and smart packaging components, are addressed. Challenges behind anthocyanin implementation in food systems are displayed and potential solutions to overcome these drawbacks are proposed.

scholarly journals Selected properties of biodegradable material produced from thermoplastic starch with by-products of food industry addition

2017 ◽  
Vol 19 (2) ◽  
pp. 51-55 ◽  
Author(s):  
Ewa Zdybel ◽  
Ewa Tomaszewska-Ciosk ◽  
Mateusz Gertchen ◽  
Wioletta Drożdż
Keyword(s):  
Thermal Conductivity ◽  
Food Industry ◽  
Thermoplastic Starch ◽  
Extrusion Process ◽  
Apple Pomace ◽  
Biodegradable Material ◽  
Solubility In Water ◽  
Conductivity Water ◽  
Fruit Pomace ◽  
By Products

Abstract In this work extrusion process were used to create thermoplastic starch and to mix obtained starch with linen, quince and apple pomace at the same time. Obtained starch beads were formed in shapes. In experimental material was determined thermal conductivity, water absorption and the solubility in water. It is possible to get the biodegradable material produced from thermoplastic starch with an addition of fruit pomace. Adding pomace and glycerine to the biodegradable material made from starch change of susceptibility on water action. In the case of materials containing pomace, glycerine addition decreases the susceptibility on water action compared to the material manufactured with pomace addition but without glycerine. In the material containing pomace, glycerine addition caused the increase of the thermal insulation time compared to the material with pomace but no glycerine in it.

By Products from Food Industries: Utilization for Bioinsecticide Production

1994 ◽  
pp. 1020-1022 ◽  
Author(s):  
Iracema O. de Moraes ◽  
Deise M. F. Capalbo ◽  
Regina O. de Moraes
Keyword(s):  
Food Industries ◽  
By Products

By-Products of the Nut and Peanut Agro-Industry as Sources of Phytochemicals Suitable for the Nutraceutical and Food Industries

2018 ◽  
pp. 201-220
Author(s):  
Alma Angelica Vazquez-Flores ◽  
José Alberto Núñez-Gastélum ◽  
Emilio Alvarez-Parrilla ◽  
Abraham Wall-Medrano ◽  
Joaquĺn Rodrigo-Garcĺa ◽  
...  
Keyword(s):  
Food Industries ◽  
By Products

Enzymatic Treatment of Petroleum-Based Hydrocarbons

2018 ◽  
pp. 396-408
Author(s):  
Pankaj Kumar Chaurasia ◽  
Shashi Lata Bharati ◽  
Ashutosh Mani
Keyword(s):  
Aromatic Hydrocarbons ◽  
Daily Life ◽  
Refining Process ◽  
Enzymatic Treatment ◽  
Human Beings ◽  
Promising Technique ◽  
System Functioning ◽  
By Products ◽  
Detoxification Process ◽  
Microbial Sources

Petroleum and petroleum-based products are highly beneficial for our daily life system. Functioning of several industries and machineries directly depends on different forms of petroleum. There are strong possibilities of the release of such petroleum and petroleum-based compounds like aliphatic as well as aromatic hydrocarbons during their refining process, usage, storage, transport, and other activities due to the accidents, leakages, or just a little lack of awareness. Their exposure to soils or water causes serious problems for aquatic as well as human beings. The efficient removal or detoxification of such pollutants is the demand of the present time. The use of microbial sources for the bioremediation of such petroleum wastes may be promising technique because it does not require any drastic conditions for detoxification process and by-products produced by them are also harmless unlike chemical and other techniques. In this regard, this chapter discusses the enzymatic role in detoxification or bioremediation of petroleum-based hydrocarbons.

Separation of secondary metabolites and bioactive substances from agricultural residues

2021 ◽  
pp. 381-394
Author(s):  
Manuel Palencia ◽  
Tulio A. Lerma ◽  
Viviana Garcés ◽  
Mayra A. Mora ◽  
Jina M. Martínez ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Agricultural Residues ◽  
Bioactive Substances
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