scholarly journals Energetic Valorisation of Olive Biomass: Olive-Tree Pruning, Olive Stones and Pomaces

Processes ◽  
2020 ◽  
Vol 8 (5) ◽  
pp. 511 ◽  
Author(s):  
Juan Francisco García Martín ◽  
Manuel Cuevas ◽  
Chao-Hui Feng ◽  
Paloma Álvarez Mateos ◽  
Miguel Torres García ◽  
...  
Keyword(s):  
Olive Oil ◽  
Energy Production ◽  
Oil Industry ◽  
Olive Tree ◽  
Biofuel Production ◽  
Future Research ◽  
Olive Stones ◽  
The World ◽  
Tree Pruning ◽  
By Products

Olive oil industry is one of the most important industries in the world. Currently, the land devoted to olive-tree cultivation around the world is ca. 11 × 106 ha, which produces more than 20 × 106 t olives per year. Most of these olives are destined to the production of olive oils. The main by-products of the olive oil industry are olive-pruning debris, olive stones and different pomaces. In cultures with traditional and intensive typologies, one single ha of olive grove annually generates more than 5 t of these by-products. The disposal of these by-products in the field can led to environmental problems. Notwithstanding, these by-products (biomasses) have a huge potential as source of energy. The objective of this paper is to comprehensively review the latest advances focused on energy production from olive-pruning debris, olive stones and pomaces, including processes such as combustion, gasification and pyrolysis, and the production of biofuels such as bioethanol and biodiesel. Future research efforts required for biofuel production are also discussed. The future of the olive oil industry must move towards a greater interrelation between olive oil production, conservation of the environment and energy generation.

scholarly journals Analytical Characterization of Water-Soluble Constituents in Olive-Derived By-Products

Foods ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1299
Author(s):  
Pablo Doménech ◽  
Aleta Duque ◽  
Isabel Higueras ◽  
José Luis Fernández ◽  
Paloma Manzanares
Keyword(s):  
Olive Tree ◽  
Mediterranean Area ◽  
Water Soluble ◽  
Olive Pomace ◽  
Olive Leaves ◽  
Olive Stone ◽  
Olive Trees ◽  
Tree Pruning ◽  
By Products

Olive trees constitute one of the largest agroindustries in the Mediterranean area, and their cultivation generates a diverse pool of biomass by-products such as olive tree pruning (OTP), olive leaves (OL), olive stone (OS), and extracted olive pomace (EOP). These lignocellulosic materials have varying compositions and potential utilization strategies within a biorefinery context. The aim of this work was to carry out an integral analysis of the aqueous extractives fraction of these biomasses. Several analytical methods were applied in order to fully characterize this fraction to varying extents: a mass closure of >80% was reached for EOP, >76% for OTP, >65% for OS, and >52% for OL. Among the compounds detected, xylooligosaccharides, mannitol, 3,4-dihydroxyphenylglycol, and hydroxytyrosol were noted as potential enhancers of the valorization of said by-products. The extraction of these compounds is expected to be more favorable for OTP, OL, and EOP, given their high extractives content, and is compatible with other utilization strategies such as the bioconversion of the lignocellulosic fraction into biofuels and bioproducts.

scholarly journals Olive oil industry by-products. Effects of a polyphenol-rich extract on the metabolome and response to inflammation in cultured intestinal cell

2018 ◽  
Vol 113 ◽  
pp. 392-400 ◽  
Author(s):  
Mattia Di Nunzio ◽  
Gianfranco Picone ◽  
Federica Pasini ◽  
Maria Fiorenza Caboni ◽  
Andrea Gianotti ◽  
...  
Keyword(s):  
Olive Oil ◽  
Oil Industry ◽  
Intestinal Cell ◽  
By Products

scholarly journals Application of Hydroxytyrosol in the Functional Foods Field: From Ingredient to Dietary Supplements

Antioxidants ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 1246
Author(s):  
Andreia F. R. Silva ◽  
Daniela Resende ◽  
Mariana Monteiro ◽  
Manuel A. Coimbra ◽  
Artur M. S. Silva ◽  
...  
Keyword(s):  
Olive Oil ◽  
Edible Oils ◽  
Food Products ◽  
Olive Tree ◽  
Functional Ingredient ◽  
Beneficial Effects ◽  
Food Properties ◽  
Regular Consumption ◽  
The Impact ◽  
By Products

Hydroxytyrosol (HT) is an amphipathic functional phenol found in the olive tree, both in its leaves and fruits, in free or bound forms, as well as in olive oil and by-products of olive oil manufacture. The European Food Safety Authority recommends regular consumption of HT due to its several beneficial effects on human health, which are closely associated to its antioxidant activity. These reasons make HT an excellent candidate for application as a functional ingredient in the design of novel food products. Patents already exist for methodologies of extraction, purification, and application of HT in supplements and food products. The present review discusses the impact of HT incorporation on food properties and its effects on consumers, based on relevant data related to the use of HT as a functional ingredient, both as a pure compound or in the form of HT-rich extracts, in various food products, namely in edible oils, beverages, bakery products, as well animal-based foods such as meat, fishery and dairy products.

scholarly journals STATE AND PROSPECTS OF BIOENERGY DEVELOPMENT

2019 ◽  
pp. 59-66 ◽  
Author(s):  
V. Linnik ◽  
Yu. Linnik
Keyword(s):  
Energy Production ◽  
The State ◽  
Biofuel Production ◽  
Energy Sources ◽  
Organic Substances ◽  
State Support ◽  
Biological Resources ◽  
The World ◽  
Alternative Sources ◽  
Almost All

Biofuel is one of the world’s major alternative sources of energy derived from biomass which includes almost all organic substances. In this regard, the state and prospects of development of the world bioenergy have been considered. The positive and negative sides of increasing energy production from biomass have been revealed. The analysis of the countries with the greatest biological resources for the production of liquid and gaseous biofuels has been carried out. The leading countries in the production of various types of biofuels have been determined and the measures of state support, contributing to the development of this direction, have been analyzed. The state and prospects of bioenergy development in Russia have been considered. The export potential of the country in the field of biofuel production and its use in industry has been revealed. It has been established, that despite some successes in the use of biofuel, the development of bioenergy projects in Russia still leaves much to be desired. The reasons, hindering the development of bioenergy in Russia, and measures to stimulate the development of biofuel production have been identified. In this regard, a flexible policy of the state in terms of innovation and energy is necessary, while today the state is focused on traditional energy sources.

Valorization of by-products from olive oil industry and added-value applications for innovative functional foods

2020 ◽  
Vol 137 ◽  
pp. 109683 ◽  
Author(s):  
Patricia Gullón ◽  
Beatriz Gullón ◽  
Gonzalo Astray ◽  
María Carpena ◽  
María Fraga-Corral ◽  
...  
Keyword(s):  
Olive Oil ◽  
Functional Foods ◽  
Oil Industry ◽  
Added Value ◽  
By Products
Sign in / Sign up

Export Citation Format

Share Document