Assessing the main opportunities of integrated biorefining from agro-bioenergy co/by-products and agroindustrial residues into high-value added products associated to some emerging markets: A review

Abstract

Market implementation of integrated biorefinery requires reliable and advanced processing units combined with ecofriendly and economically profitable production chains. Future developments of the biorefinery systems should include either crop cultivation with selected genotypes that maximize full chain performance either the use of marketable agricultural residual biomass and agro-waste. The aim of the present work was to review the main biorefining opportunities of disposable agricultural residues, agricultural co/by-products and agro-wastes into a broad range of green chemicals and high-value added co/by-products valuable in some emerging technological sectors. The current status and future perspectives of conversion starting from agricultural residual biomasses and agro-wastes into highvalue co/by-products, green chemicals and energy recovery by an approach of integrated biorefinery has been considered. After a recognition on nature, origin and European classification of the main categories of organic residuals from crops, forestry, agro-industrial food processing, aquaculture, fisheries and agro-wastes, this paper has focused its challenge on the main biofuel co/by-products associated to the thermochemical and biological conversion processes.The high-value added co/by-products from the biofuel chains related to some chemical basic-platforms (e.g., succinic acid, cellulose, lignin, glycerin, etc.) have been presented and discussed. Then, a special attention towards potential U. De Corato et al. / Renewable and Sustainable Energy Review 2 applications of the high-value added co/by-products and green chemicals in three emerging fields (renewable and sustainable farming systems, bioplastic industry and cell and tissue engineering in biomedical applications) for actual and future players has been given and discuss. Finally, this paper has addressed own concern on the actual and potential biorefining opportunities in the EU and in Italy.

Biofumigation for Fighting Replant Disease- A Review

“…If Brassicaceaes are grown as a rotation crop, farmers lose time for their cash crops. Thus, and also due to the fact that seed meal or oil-less seed cakes contain high amounts of glucosinolates, the use of these by-products of the biofuel production can enable the provisioning of the required biomass [94,95].…”

Cotton and cardoon byproducts as potential growing media components for Cichorium spinosum L. commercial cultivation

“…The use of artichoke waste for the recovery of phenolic compounds and bioenergy production has been suggested by Zuorro et al (2016), while Petropoulos et al (2017Petropoulos et al ( , 2018a have reported the bioactive compounds profile of cardoon plant parts for potential use in the pharmaceutical industry. While the byproducts of both cotton and cardoon processing are considered bulky biowaste (De Corato et al, 2018), the increasing demand of nonsynthetic, renewable, and locally available growing media for soilless-grown horticultural crops may open new perspectives for the use of these materials as substitute of peat-based growing media (Di Gioia et al, 2017).…”

Influence of acidogenic fermented fish by-products with rice bran for sludge reduction and biogas recovery in anaerobic co-digestion

“…Increasing sludge reduction leads to decomposition of organic matter and increased biogas generation. Volatile solids reduction efficiency is important because biogas production leads to an increase in methane gas generation, although there are some differences depending on the properties of the substrate [23,31]. In this experiment, the COD reduction value was 30.4%, 68.5%, 83.6%, and 46.66% for SF1, SF2, SF3, and SF4, respectively (Fig.…”

“…The methane content of a typical anaerobic digestion gas ranges from 55% to 70% [15]. According to previous studies, higher methane content (over 70%) results in higher quality biogas [22,31]. Production of biogas using FFB is significant because it contains more methane than other feed stocks, offering the possibility of biogas production using FFB.…”

“…In addition, incineration, one of the treatment methods for FBs, costs 38.77 (US$/ton), which is more expensive than composting [2]. Dry feed stuff was the most expensive treatment of FBs, 124.25 (US$/ton), about three times as much as incineration and about 3.8 times as high as aerobic composting [3,21,31]. On the other hand, the combined process of FFB and sewage sludge was 17.38 (US$/ton), which is the lowest treatment cost of all treatment methods.…”