We use cookies to give you the best experience possible. By continuing we’ll assume you’re on board with our cookie policy

Fish Scales Wastes for the Recovery of Astaxanthin

essay
The whole doc is available only for registered users
  • Pages: 4
  • Word count: 933
  • Category: Tax Waste

A limited time offer! Get a custom sample essay written according to your requirements urgent 3h delivery guaranteed

Order Now

Fish Scales Wastes from Selected Teleosts-Innovative Sorption Materials for the Recovery of Astaxanthin. This study shows the potential use of fish scalesof telleosts chanos and Tilapia nilotica as natural sorption materials in the recovery of astaxanthin. Astaxanthin, a feed additive, is a major carotenoid responsible for the pink-red pigmentation of fish and shrimps.Aquatic animals cannot synthesize this thus it must be supplemented in their diet. Aside from being a colorant, astaxanthin has both biological and nutritional importance as well as antioxidant property. Astaxanthin therefore needs to be recovered from wastewaters that have been colored withastaxanthin as it may pose serious environmental threats.Fish scales of teleosts: Chanos chanos and Tilapia nilotica were utilized for recovering astaxanthin. The innovation in adsorption is the utilization of solid wastes as natural sorption material and their availability at minimal cost. Synthetic astaxanthin dissolved in water was made to flow in “Fish Scale Adsorption Apparatus” (FSAA) containing unshredded or shredded scales.

Comparison of treatments based on the discoloration of filtrate to be released from the FSAA and the length of time the flow lasted revealed that shredded tilapia scales were most effective in retaining the pigments. Scanning electron micrographs of the surface of tilapia scales revealed porous tooth-like structures called sclerits. These pores along with particles scattered on the interspacing between sclerits’ particles were inferred to bind the pigment. Based on the effective filtration features of the tilapia fish scales, it is suggested that the scales be used in wastewater treatment of different factories. Moreover, fish scales as sorption materials for heavy metals should be explored.Further clarification of the procedures and results should be directed to the researchers and adviser.|

Recovery of astaxanthin from seafood wastewater utilizing fish scales waste.

Share on twitterMore Sharing ServicesShare on emailShare on facebookShare on linkedinShare on stumbleuponShare on diggShare on delicious  LOGIN OR SIGN UP FOR MORE DETAILS

Related Videos

Addiction Recovery Methadose

A pharmacist explains how Methadose works, why doctors prescribe this powerful pain killer, and comm…

Rebuilding your own mind – str…

Read more: www.newscientist.com Jill Bolte Taylor describes her stroke and recovery. … Jill Bolte …

Lecture – 27 Introduction to T…

Lecture Series on Database Management System by Dr. S. Srinath,IIIT Bangalore . For more details on …

Lecture – 27 Introduction to T…

Lecture Series on Database Management System by Dr. S. Srinath,IIIT Bangalore . For more details on …

A New Foundation for Growth As…

Speaker: Peter R. Orszag, Director, Office of Management and Budget, White HousePresider: R. Glenn H…

Related Hubpages

Abstract: The paper presents basic data on astaxanthin adsorption from fisheries wastewater to fish scales. This process has been proposed to be applicable in fisheries and shrimp waste management [Helgason, Recovery of compounds using a natural adsorbent, Patent WO 01/77230, 2001]. The innovative feature of the method is the application of a solid waste (fish scales) as a natural adsorbent for a carotenoid pigment (astaxanthin) from the seafood industry wastewater. The model investigations were performed with pure synthetic carotenoids to exclude the role of matrix in which astaxanthin is present in the wastewater. Under the experimental conditions used, the maximum loading capacity of astaxanthin onto the scales is 360 mg kg(-1) dry wt. Studies of the thus formed value added product indicated that drying causes significant loss of astaxanthin activity. Due to the effective filtration characteristics of the studied sorption material, we suggest the scale/astaxanthin sorption process to be suitable for treatment of wastewater from different industries.

Recovery of astaxanthin from seafood wastewater utilizing fish scales waste * P. Stepnowskia, , ,
* G. Ólafssonb, , , ,
* H. Helgasonb,
* B. Jastorffc
* a Faculty of Chemistry, University of GdaƄsk, ul. J. Sobieskiego 18, 80-952 GdaƄsk, Poland * b Environmental Engineering Division, Linuhönnun Ltd., Sudurlandsbraut 4a, 108 Reykjavı́k, Iceland * c Center for Environmental Research and Technology, University of Bremen, Leobener Str. 28359 Bremen, Germany * http://dx.doi.org/10.1016/S0045-6535(03)00718-5, How to Cite or Link Using DOI * Permissions & Reprints

View full text

Purchase $41.95

Abstract
The paper presents basic data on astaxanthin adsorption from fisheries wastewater to fish scales. This process has been proposed to be applicable in fisheries and shrimp waste management [Helgason, Recovery of compounds using a natural adsorbent, Patent WO 01/77230, 2001]. The innovative feature of the method is the application of a solid waste (fish scales) as a natural adsorbent for a carotenoid pigment (astaxanthin) from the seafood industry wastewater. The model investigations were performed with pure synthetic carotenoids to exclude the role of matrix in which astaxanthin is present in the wastewater. Under the experimental conditions used, the maximum loading capacity of astaxanthin onto the scales is 360 mg kg−1 dry wt. Studies of the thus formed value added product indicated that drying causes significant loss of astaxanthin activity. Due to the effective filtration characteristics of the studied sorption material, we suggest the scale/astaxanthin sorption process to be suitable for treatment of wastewater from different industries. Keywords

* Astaxanthin recovery;
* Fish scales as adsorbent;
* Fisheries waste treatment

Figures and tables from this article:

Fig. 1. Experimental set-up with indicated sampling ports.
Figure options

Fig. 2. Sorption capacity of astaxanthin from wastewater on compressed not milled scales (column length: 10 cm; scales: 3.5 g (dry wt.); 52 ml g−1 (volume); fractions: 10 ml each. Figure options
Table 1. Astaxanthin concentrations in the fractions (ii)–(v) (mg kg−1 dry wt.) and wastewater (mg l−1 wet wt.) from the sorption experiment before and after drying in 40 °C for 12 h

Related Topics

We can write a custom essay

According to Your Specific Requirements

Order an essay
icon
300+
Materials Daily
icon
100,000+ Subjects
2000+ Topics
icon
Free Plagiarism
Checker
icon
All Materials
are Cataloged Well

Sorry, but copying text is forbidden on this website. If you need this or any other sample, we can send it to you via email.

By clicking "SEND", you agree to our terms of service and privacy policy. We'll occasionally send you account related and promo emails.
Sorry, but only registered users have full access

How about getting this access
immediately?

Your Answer Is Very Helpful For Us
Thank You A Lot!

logo

Emma Taylor

online

Hi there!
Would you like to get such a paper?
How about getting a customized one?

Can't find What you were Looking for?

Get access to our huge, continuously updated knowledge base

The next update will be in:
14 : 59 : 59