Hydrothermal Pretreatment of Date Palm (Phoenix dactylifera L.) Leaflets and Rachis to Enhance Enzymatic Digestibility and Bioethanol Potential

BioMed Research International
Chuanji FangMette Hedegaard Thomsen

Abstract

Date palm residues are one of the most promising lignocellulosic biomass for bioethanol production in the Middle East. In this study, leaflets and rachis were subjected to hydrothermal pretreatment to overcome the recalcitrance of the biomass for enzymatic conversion. Evident morphological, structural, and chemical changes were observed by scanning electron microscopy, X-ray diffraction, and infrared spectroscopy after pretreatment. High glucan (>90% for both leaflets and rachis) and xylan (>75% for leaflets and >79% for rachis) recovery were achieved. Under the optimal condition of hydrothermal pretreatment (210°C/10 min) highly digestible (glucan convertibility, 100% to leaflets, 78% to rachis) and fermentable (ethanol yield, 96% to leaflets, 80% to rachis) solid fractions were obtained. Fermentability test of the liquid fractions proved that no considerable inhibitors to Saccharomyces cerevisiae were produced in hydrothermal pretreatment. Given the high sugar recovery, enzymatic digestibility, and ethanol yield, production of bioethanol by hydrothermal pretreatment could be a promising way of valorization of date palm residues in this region.

References

May 23, 2000·Journal of Agricultural and Food Chemistry·S Hari Krishna, G V Chowdary
Oct 13, 2006·Antonie van Leeuwenhoek·Antonius J A van MarisJack T Pronk
Feb 10, 2007·Science·Gregory Stephanopoulos
Feb 10, 2007·Science·Michael E HimmelThomas D Foust
Aug 16, 2008·Nature·Edward M Rubin
Sep 11, 2008·Biotechnology and Bioengineering·Bryon S DonohoeTodd B Vinzant
May 13, 2010·New Biotechnology·Mads Pedersen, Anne S Meyer
Jul 17, 2010·Bioresource Technology·Aloia RomaníJuan Carlos Parajó
Jul 29, 2010·Bioresource Technology·Rojan P JohnAshok Pandey
Jun 24, 2011·Nature·Natasha Gilbert
Oct 9, 2012·Biotechnology and Bioengineering·Rajeev KumarCharles E Wyman
Jul 31, 2013·Biotechnology and Bioengineering·Youngmi KimMichael R Ladisch
Aug 21, 2013·Saudi Journal of Biological Sciences·M Chandrasekaran, Ali H Bahkali
Mar 5, 2014·Journal of Pharmaceutical Sciences·Laysa Pires De Figueiredo, Fabio Furlan Ferreira
Apr 1, 2014·Current Opinion in Chemical Biology·Paul V HarrisShiro Fukuyama
May 17, 2014·Science·Arthur J RagauskasCharles E Wyman

❮ Previous
Next ❯

Citations

Apr 14, 2016·Bioresource Technology·Juan-Rodrigo Bastidas-OyanedelJens Ejbye Schmidt
Sep 3, 2021·Bioresource Technology·Qian SunTong-Qi Yuan

❮ Previous
Next ❯

Methods Mentioned

BETA
scanning electron microscopy
Infrared Spectroscopy
X-ray
NMR

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.