Characteristics and Microbial Succession in Co-Composting of Oil Palm Empty Fruit Bunch and Partially Treated Palm Oil Mill Effluent

Baharuddin, Azhari Samsu; Nakamura, Kazunori; Abd‐Aziz, Suraini; Tabatabaei, Meisam; Rahman, Norizah Abdul; Hassan, Mohd Ali; Wakisaka, Minato; Sakai, Kenji; Shirai, Yoshihito

doi:10.2174/1874070700903010087

Cited by 36 publications

(15 citation statements)

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“…These issues and opportunities have stressed the need to develop alternatives to conventional oil palm waste treatments, among which composting is a promising one. Composting can be defined as the biological transformation of organic matter by a succession of microorganisms under controlled environmental conditions (Baharuddin et al, 2009), usually in aerobic conditions with a thermophilic phase (60-75°C) (Ceglie and Adbelrahman, 2014). It results in the degradation of organic matter and the emission of volatile compound (CO 2 , CH 4 , N 2 0, NH 3 , N 2 , H 2 O) but also in the stabilisation of the remaining organic matter (Bernal et al, 1998;Francou et al, 2005) leading to the production of a humified, non-phytotoxic material (Kavitha et al, 2016) with high potentials for providing nutrients and increasing soil carbon.…”

Section: Composting Oil Palm Mill Co-productsmentioning

confidence: 99%

Agroecological practices in oil palm plantations: examples from the field

Bessou

Verwilghen

Beaudoin‐Ollivier

et al. 2017

OCL

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-Palm oil is nowadays the first vegetable oil consumed worldwide. Given the world population growth and the increasing demand in fat for food and fuel, the increase in oil palm production is expected to continue. It is thus important to find ways of reducing the ecological impact of oil palm plantations at both the agroecosystem and the mill supply area levels, by improving agricultural practices and land uses. This is where agroecology can play a very critical role. The present article gathers short stories on agroecological practices currently taking place in oil palm plantations in South-East Asia. Such stories notably highlight the importance of the various palm co-products and how appropriate recycling strategies can allow for reducing external inputs to both the field and the mill. Besides limiting environmental impacts thanks to such savings, several coproducts used as organic amendments can even help to maintain or enhance soil quality. Other stories explored agroecological practices developed for biological controls. Although integrated pest management has been applied in palm plantations for a long time, the underlying mechanisms are still not fully deciphered and practices still need to be improved. More knowledge is needed in order to better account for the holistic role of biodiversity and arbitrate trade-offs between practices and ecosystem services, at both plantation and landscape levels.Keywords: palm oil / agroecology / biological control / recycling / composting / soil quality Résumé -Pratiques agroécologiques en plantations de palmier à huile : exemples de terrain. L'huile de palme est aujourd'hui la première huile végétale consommée au monde. Étant donné la croissance démographique mondiale et la demande accrue en corps gras pour l'alimentation et les biocarburants, l'augmentation de la production d'huile de palme devrait perdurer. Il est ainsi primordial de trouver des moyens de production permettant de réduire l'impact écologique des plantations de palmier à huile, à la fois à l'échelle de l'agroécosystème et celle du bassin d'approvisionnement de l'huilerie, en améliorant les pratiques et la gestion des usages des sols. Les principes de l'agroécologie peuvent aider à développer des solutions à ces diverses échelles. Cet article rassemble diverses histoires courtes illustrant des pratiques agroécologiques mises en place dans des plantations de palmier à huile en Asie du Sud-Est. Ces illustrations mettent en évidence l'importance des nombreux co-produits issus du palmier et leur rôle clé dans les stratégies de recyclage pour réduire le recours aux intrants externes pour la plantation comme pour l'huilerie. Au-delà de la réduction des impacts environnementaux du fait de ces économies d'intrants, certains co-produits restitués en plantation peuvent également permettre de maintenir, voire d'améliorer, la qualité des sols. D'autres histoires courtes parcourent quelques autres pratiques agroécologiques dans le domaine de la lutte intégrée. Bien que de nombreuses pratiques de contrôle bi...

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Section: Composting Oil Palm Mill Co-productsmentioning

confidence: 99%

Agroecological practices in oil palm plantations: examples from the field

Bessou

Verwilghen

Beaudoin‐Ollivier

et al. 2017

OCL

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“…Microorganisms are fundamental to the biological treatment of wastewater [22]. Microorganisms' identification in the SBR in this study was observed by PCR-DGGE analysis in terms of biochemical aspects and bacterial populations.…”

Section: Microbial Community Analysis Using Pcr-dggementioning

confidence: 98%

Microbial Community Analysis in Anaerobic Palm Oil Mill Effluent (Pome) Wastewater by Denaturing Gradient Gel Electrophoresis (Dgge)

Tajuddin¹

2015

IJRET

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Microorganisms play a key role in wastewater bio-treatment processes and understanding the microbial community structure is of great importance to improve treatment performance. Denaturing gradient gel electrophoresis (DGGE) was used to monitor succession of the microbial community and thus predominant bands were sequenced to reveal the microbial community composition inside palm oil mill effluent (POME) wastewater.DNA bands from DGGE gels were excised with a sterile blade and placed in 1.5 ml eppendorf tube containing 50 μl deionized water (ddH 2 O). Tubes were incubated overnight at 4C to elute the DNA. Eluted DNA was purified using QIAquick gel extraction kits (QIAGEN, Inc., Valencia, CA) and was frozen and thawed three times.Microbial DNA successfully excised and purified from DGGE was amplified using polymerase chain reaction (PCR).Five micro liters of the supernatant were used as a template to re-amplify the DNA using 16s rDNA primers,341f (with no GC-clamp) (5'-cct-acg-gga-ggc-agc-ag-3') and reverse(r) primers 907r (5'-ccc-cgt-caa-ttc-att-tga-gtt-t-3'). Amplification was repeated referring to the steps in 'PCR amplification of 16s rDNA'. PCR products from agarose gels were cut and purified using QIAquick Gel Extraction Kit (QIAGEN, Inc., Valencia, CA), which were similar to the purification steps after recovery of DNA from DGGE, and sequenced in both directions with the same primers (with no GC-clamp) as used in PCR. Moreover, start-up is an important step in establishing proper community structure in all kinds of biological treatment processes. In anaerobic POME wastewater, 6 sequences of Firmicutes, 5 sequence of Proteobacterium and 2 sequences of Bacteroidetes were found through denaturing gradient gel electrophoresis (DGGE) results. Sequence closely related to Rummeliibacillus suwonensis strain G20 was detected grows at band BE10, BE11, BE12, BE15, BE16, BE17 and BE18. Meanwhile BE25 and BE26 were found at ban d after treatment process done.Rummeliibacillus suwonensis is an aerobic, Gram-positive, rod shaped, round-spore-forming bacteria which were isolated from aerobic condition.

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“…EFB is by-products generated from CPO process and is said to be sustainable and renewable. Due to the huge number of CPO processing mills and large plantation area (covers about 4.85 million ha), about 15 million t of EFB is estimated to be generated annually (Baharuddin et al 2009;Geng 2013).…”

Section: Empty Fruit Bunchesmentioning

confidence: 99%