Nutritional value and production of three species of purple non-sulphur bacteria grown in palm oil mill effluent and their application in rotifer culture

Loo, Poh Leong; Sabaratnam, Vikineswary; Chong, Ving Ching

doi:10.1111/anu.12035

Cited by 21 publications

(19 citation statements)

References 36 publications

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“…data). On the other hand, 1 kg dry weight of microalgae could cost USD50.00 (Eirik, Augustin & Vernon ) or USD46.44 for Spirulina and Chlorella (Brennan & Owende ) while the equivalent dry weight of bPB would cost USD23.29 (Loo, Chong & Vikineswary ).…”

Section: Discussionmentioning

confidence: 99%

Waste-grown phototrophic bacterium supports culture of the rotifer,Brachionus rotundiformis

et al. 2015

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The present and commonly used batch culture system (BCS) as adopted by many small‐scale tropical hatcheries is beset by poor rotifer production and sudden crashes. This study aimed to produce nutritive rotifers and evaluate their performance based on the BCS by using phototrophic bacteria (PB) that can be easily and cheaply cultured from palm oil mill effluent (POME), an agro‐industrial byproduct usually discarded as waste. Brachionus rotundiformis given a sole diet of POME‐grown PB (Rhodovulum sulfidophilum) grew as well as on the commercially produced microalgae, Nannochloropsis. Production, growth rate and fecundity of rotifers fed condensed bacterial cells (bPB) and culture broth of bacteria grown in POME (cPB) were evaluated. The best performance in terms of the stated parameters was obtained for rotifers fed 200 mL of cPB in 3 L of culture water; this media sustained a mean rotifer density of 600–900 individuals mL−1 after 3–6 days of culture. The biochemical composition of rotifers fed PB was comparable to those fed microalgae, except that the former contained more polyunsaturated fatty acids.

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Section: Discussionmentioning

confidence: 99%

Waste-grown phototrophic bacterium supports culture of the rotifer,Brachionus rotundiformis

et al. 2015

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“…In a different nutritional application, Loo et al . () produced non‐sulphur bacteria ( Rhodopseudomonas palustris , Rhodobacter sphaeroides and Rhodovulum sulfidophilum ) in palm oil mill effluent and applied the bacterial biomass to culture rotifers. Rotifers fed R. sulfidophilum grown in palm oil mill effluent had significantly higher amounts of protein, arachidonic acid, EPA and DHA than rotifers fed bacteria grown in conventional synthetic medium.…”

Section: Emerging and Current Microbial Production Methodsmentioning

confidence: 99%

“…Moreover, it has been reported that the nutritional content of bacteria and microalgae can be significantly modified by applying specific culture media and growth conditions (Loo et al . ; Huang & Su ).The cell walls of yeast comprise from 25 to 32% of the cell weight (Ferreira et al . ).…”

Section: Nutritional Value Of Microorganisms and Their Cellular Compomentioning

confidence: 99%

Potential of microbial‐derived nutrients for aquaculture development

Gamboa‐Delgado

Márquez-Reyes

2016

Reviews in Aquaculture

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Fisheries and aquaculture products will have a lead role in satisfying the food requirements of the growing human population. The fish meal required for the manufacture of aquaculture feeds represents a limited resource having high demand. Unconventional sources of nutrients have been intensely researched and among these, the microbial biomass produced from heterotrophic and autotrophic microorganisms has been considered as a promising substitute for animal‐ and plant‐derived ingredients. Several studies have shown that different species of yeast, bacteria and microalgae are viable for high density culture and show excellent nutritional characteristics for terrestrial and aquatic animals. Such features have lead to additional research to upscale production and although production costs are still high; novel, sophisticated methods have focused on utilizing alternative substrates for producing microbial biomass. The aquaculture industry requires renewable nutrient sources that can yield high quality protein and other essential nutrients. In this context, the nutritional characteristics of microorganisms and the emerging technologies aimed to produce microbial biomass allow forecasting increased applications. The present manuscript reviews the current state of the production and use of microorganisms as dietary ingredients in aquaculture nutrition, with emphasis on those showing solid potential as functional additives and fish meal replacement ingredients. A synthesis of recent results on the effects promoted by the dietary inclusion of microbial biomass is presented, underlining the employment of different sources of yeast, bacteria and microalgae and the physiological ability of aquatic animals to utilize these alternative nutrient sources.

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“…Furthermore, the nutritional content of bacteria can be considerably modified by applying a specific culture medium and optimum growth conditions (Loo et al . ; Huang & Su ). Additionally, some types of bacterial cell walls represent an important source of nutrients because cell walls are principally composed of protein (13%) and polysaccharides (85–88%) (Nguyen et al .…”

Section: Nutritional Values Of Bacterial Cellular Componentsmentioning

confidence: 99%

Use of bacterial subcellular components as immunostimulants in fish aquaculture

Giri

Chi

Jun

et al. 2016

Reviews in Aquaculture

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Aquaculture and fisheries products are expected to play a leading part in addressing the food necessities of the increasing human population. However, in intensive aquaculture, fish are exposed to stress conditions that deteriorate their immune systems, leading to increased disease vulnerability. These disease outbreaks have resulted in production losses and represent one of the key constraints in fish farming. Accordingly, aquaculture disease management efforts have concentrated on the establishment of environmental friendly and lasting methods. Recently, several studies have revealed that various bacteria (especially probiotics)‐derived cellular components might be used as promising immunostimulants in fish aquaculture. Such components curtail the risk concomitant with the use of antibiotics, chemotherapeutics, vaccines and probiotics. Among the various health advantages ascribed to bacterial cellular components, the modulation of specific and nonspecific immune responses, cytokine gene expression and anti‐pathogenic activities are most anticipated benefits. Their potential as vaccine adjuvants for fish culture has also been demonstrated. However, as an emerging practice, limited knowledge is available regarding the detailed interactions with fish immune systems. Therefore, the underlying mechanisms involved in fish immune cell activation need to be explored further. In this context, the present article aspires to review the available studies on the use of bacterial cellular components in fish culture and their biological effects on fish such as growth promotion, immunostimulation and anti‐pathogenic activities as well as to evaluate the factors that control the optimal induction of immune responses in fish. In addition, future issues that merit further investigation are suggested.

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Nutritional value and production of three species of purple non-sulphur bacteria grown in palm oil mill effluent and their application in rotifer culture

Cited by 21 publications

References 36 publications

Waste-grown phototrophic bacterium supports culture of the rotifer,Brachionus rotundiformis

Waste-grown phototrophic bacterium supports culture of the rotifer,Brachionus rotundiformis

Potential of microbial‐derived nutrients for aquaculture development

Use of bacterial subcellular components as immunostimulants in fish aquaculture

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