151
|
Hyeon JE, Jeon SD, Han SO. Cellulosome-based, Clostridium-derived multi-functional enzyme complexes for advanced biotechnology tool development: advances and applications. Biotechnol Adv 2013; 31:936-44. [PMID: 23563098 DOI: 10.1016/j.biotechadv.2013.03.009] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Revised: 03/22/2013] [Accepted: 03/25/2013] [Indexed: 12/20/2022]
Abstract
The cellulosome is one of nature's most elegant and elaborate nanomachines and a key biological and biotechnological macromolecule that can be used as a multi-functional protein complex tool. Each protein module in the cellulosome system is potentially useful in an advanced biotechnology application. The high-affinity interactions between the cohesin and dockerin domains can be used in protein-based biosensors to improve both sensitivity and selectivity. The scaffolding protein includes a carbohydrate-binding module (CBM) that attaches strongly to cellulose substrates and facilitates the purification of proteins fused with the dockerin module through a one-step CBM purification method. Although the surface layer homology (SLH) domain of CbpA is not present in other strains, replacement of the cell surface anchoring domain allows a foreign protein to be displayed on the surface of other strains. The development of a hydrolysis enzyme complex is a useful strategy for consolidated bioprocessing (CBP), enabling microorganisms with biomass hydrolysis activity. Thus, the development of various configurations of multi-functional protein complexes for use as tools in whole-cell biocatalyst systems has drawn considerable attention as an attractive strategy for bioprocess applications. This review provides a detailed summary of the current achievements in Clostridium-derived multi-functional complex development and the impact of these complexes in various areas of biotechnology.
Collapse
Affiliation(s)
- Jeong Eun Hyeon
- School of Life Sciences and Biotechnology, Korea University, Seoul, 136-701, Republic of Korea
| | | | | |
Collapse
|
152
|
Jiang Z, Ueno M, Nishiguchi T, Abu R, Isaka S, Okimura T, Yamaguchi K, Oda T. Importance of sulfate groups for the macrophage-stimulating activities of ascophyllan isolated from the brown alga Ascophyllum nodosum. Carbohydr Res 2013; 380:124-9. [PMID: 24025707 DOI: 10.1016/j.carres.2013.05.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Revised: 05/27/2013] [Accepted: 05/29/2013] [Indexed: 10/26/2022]
Abstract
To investigate the role of sulfate groups on the macrophage-stimulating activities of ascophyllan, we prepared desulfated ascophyllan, and its effects on RAW264.7 cells were compared with native ascophyllan. The chemical structural analysis revealed that nearly 21% of sulfate groups of ascophyllan were removed by desulfation reaction, while no significant changes in the molecular mass and monosaccharide composition occurred after desulfation. NO- and cytokine- (TNF-α and G-CSF) inducing activities of the desulfated ascophyllan on RAW264.7 cells were significantly decreased as compared to native ascophyllan. Furthermore, the activity of desulfated ascophyllan to induce reactive oxygen species (ROS) generation from RAW264.7 cells decreased to almost negligible level. Our results suggest that the level of sulfate groups of ascophyllan is an important structural element responsible for the macrophage-stimulating activities. Probably, even the limited removal of sulfate residues sensitive to desulfation reaction may result in significant decrease in the bioactivities of ascophyllan.
Collapse
Affiliation(s)
- Zedong Jiang
- Graduate School of Fisheries Science and Environmental Studies, Nagasaki University, Nagasaki 852-8521, Japan
| | | | | | | | | | | | | | | |
Collapse
|
153
|
Bioactive components of the edible strain of red alga, Chondrus crispus, enhance oxidative stress tolerance in Caenorhabditis elegans. J Funct Foods 2013. [DOI: 10.1016/j.jff.2013.04.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
|
154
|
Balboa EM, Conde E, Moure A, Falqué E, Domínguez H. In vitro antioxidant properties of crude extracts and compounds from brown algae. Food Chem 2013; 138:1764-85. [PMID: 23411309 DOI: 10.1016/j.foodchem.2012.11.026] [Citation(s) in RCA: 220] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2012] [Revised: 11/02/2012] [Accepted: 11/06/2012] [Indexed: 01/03/2023]
Abstract
Research on the bioactives from seaweeds has increased in recent years. Antioxidant activity is one of the most studied, due to the interest of these compounds both as preservatives and protectors against oxidation in food and cosmetics and also due to their health implications, mainly in relation to their potential as functional ingredients. Brown algae present higher antioxidant potential in comparison with red and green families and contain compounds not found in terrestrial sources. In vitro antioxidant chemical methods, used as a first approach to evaluate potential agents to protect from lipid oxidation in foods, confirmed that the brown algae crude extracts, fractions and pure components are comparatively similar or superior to synthetic antioxidants. Particular emphasis on the fucoidan and phlorotannin polymeric fractions is given, considering variations associated with the species, collection area, season, and extraction and purification technologies.
Collapse
Affiliation(s)
- Elena M Balboa
- Departamento de Enxeñería Química, Universidade de Vigo (Campus Ourense), Edificio Politécnico, As Lagoas, 32004 Ourense, Spain
| | | | | | | | | |
Collapse
|
155
|
Carvalho V, Fernandes L, Conde T, Zamith H, Silva R, Surrage A, Frutuoso V, Castro-Faria-Neto H, Amendoeira F. Antinociceptive activity of Stephanolepis hispidus skin aqueous extract depends partly on opioid system activation. Mar Drugs 2013; 11:1221-34. [PMID: 23574984 PMCID: PMC3705400 DOI: 10.3390/md11041221] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Revised: 03/28/2013] [Accepted: 04/03/2013] [Indexed: 11/16/2022] Open
Abstract
Stephanolepis hispidus is one of the most common filefish species in Brazil. Its skin is traditionally used as a complementary treatment for inflammatory disorders. However, there are very few studies on chemical and pharmacological properties using the skin of this fish. This study was undertaken in order to investigate the effect of aqueous crude extract of S. hispidus skin (SAE) in different nociception models. Here, we report that intraperitoneal administration of SAE inhibited the abdominal constrictions induced by acetic acid in mice. In addition to the effect seen in the abdominal constriction model, SAE was also able to inhibit the hyperalgesia induced by carrageenan and prostaglandin E2 (PGE2) in mice. This potent antinociceptive effect was observed in the hot plate model too, but not in tail-flick test. Naloxone, an opioid receptor antagonist, was able to block the antinociceptive effect of SAE in the abdominal constriction and hot plate models. In addition, SAE did not present cytotoxic or genotoxic effect in human peripheral blood cells. Our results suggest that aqueous crude extract from S. hispidus skin has antinociceptive activity in close relationship with the partial activation of opioid receptors in the nervous system. Moreover, aqueous crude extract from S. hispidus skin does not present toxicity and is therefore endowed with the potential for pharmacological control of pain.
Collapse
Affiliation(s)
- Vinicius Carvalho
- Laboratory of Inflammation, IOC, Fiocruz, Rio de Janeiro-RJ, 21045-900, Brazil
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +55-21-2562-1334; Fax: +55-21-2562-1357
| | - Lohengrin Fernandes
- Division of Marine Ecosystems, Department of Oceanography, IEAPM, Arraial do Cabo-RJ, 28930-000, Brazil; E-Mail:
| | - Taline Conde
- Laboratory of Pharmacology, INCQS, Fiocruz, Rio de Janeiro-RJ, 21045-900, Brazil; E-Mails: (T.C.); (H.Z.); (R.S.); (F.A.)
| | - Helena Zamith
- Laboratory of Pharmacology, INCQS, Fiocruz, Rio de Janeiro-RJ, 21045-900, Brazil; E-Mails: (T.C.); (H.Z.); (R.S.); (F.A.)
| | - Ronald Silva
- Laboratory of Pharmacology, INCQS, Fiocruz, Rio de Janeiro-RJ, 21045-900, Brazil; E-Mails: (T.C.); (H.Z.); (R.S.); (F.A.)
| | - Andrea Surrage
- Laboratory of Immunopharmacology, IOC, Fiocruz, Rio de Janeiro-RJ, 21045-900, Brazil; E-Mails: (A.S.); (V.F.); (H.C.-F.-N.)
| | - Valber Frutuoso
- Laboratory of Immunopharmacology, IOC, Fiocruz, Rio de Janeiro-RJ, 21045-900, Brazil; E-Mails: (A.S.); (V.F.); (H.C.-F.-N.)
| | - Hugo Castro-Faria-Neto
- Laboratory of Immunopharmacology, IOC, Fiocruz, Rio de Janeiro-RJ, 21045-900, Brazil; E-Mails: (A.S.); (V.F.); (H.C.-F.-N.)
| | - Fabio Amendoeira
- Laboratory of Pharmacology, INCQS, Fiocruz, Rio de Janeiro-RJ, 21045-900, Brazil; E-Mails: (T.C.); (H.Z.); (R.S.); (F.A.)
| |
Collapse
|
156
|
An C, Kuda T, Yazaki T, Takahashi H, Kimura B. FLX pyrosequencing analysis of the effects of the brown-algal fermentable polysaccharides alginate and laminaran on rat cecal microbiotas. Appl Environ Microbiol 2013; 79:860-6. [PMID: 23183985 PMCID: PMC3568576 DOI: 10.1128/aem.02354-12] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Accepted: 11/14/2012] [Indexed: 01/05/2023] Open
Abstract
Edible brown algae are used as major food material in Far East Asian countries, particularly in South Korea and Japan. They contain fermentable dietary fibers, alginic acid (uronic acid polymer) and laminaran (β-1,3-glucan), that are fermented into organic acids by intestinal bacteria. To clarify the effect of edible algae on the intestinal environment, the cecal microbiotas of rats fed diets containing no dietary fiber (control) or 2% (wt/wt) sodium alginate or laminaran for 2 weeks were analyzed using FLX amplicon pyrosequencing with bar-coded primers targeting the bacterial 16S rRNA gene. The most abundant phylum in all groups was Firmicutes. Specifically, Allobaculum was dominant in all diet groups. In addition, Bacteroides capillosus (37.1%) was abundant in the alginate group, while Clostridium ramosum (3.14%) and Parabacteroides distasonis (1.36%) were only detected in the laminaran group. Furthermore, rats fed alginate showed simplified microbiota phylotypes compared with others. With respect to cecal chemical compounds, laminaran increased cecal organic acid levels, particularly propionic acid. Alginate increased total cecal organic acids. Cecal putrefactive compounds, such as indole, H(2)S, and phenol, were decreased by both alginate and laminaran. These results indicate that edible brown algae can alter the intestinal environment, with fermentation by intestinal microbiota.
Collapse
Affiliation(s)
- Choa An
- Department of Food Science and Technology, Faculty of Marine Science, Tokyo University of Marine Science and Technology, Tokyo, Japan
| | | | | | | | | |
Collapse
|
157
|
Besednova NN, Zaporozhets TS, Makarenkova ID, Kuznetsova TA, Kryzhanoskii SP, Zvyagintseva TN, Mel’nikov VG. Anti-inflammatory effects of sulphated polysaccharides extracted from brown marine algae. ACTA ACUST UNITED AC 2012. [DOI: 10.1134/s2079086412060023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
158
|
Michiels J, Skrivanova E, Missotten J, Ovyn A, Mrazek J, De Smet S, Dierick N. Intact brown seaweed (Ascophyllum nodosum) in diets of weaned piglets: effects on performance, gut bacteria and morphology and plasma oxidative status. J Anim Physiol Anim Nutr (Berl) 2012; 96:1101-11. [PMID: 21917025 DOI: 10.1111/j.1439-0396.2011.01227.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The aim was to assess the effects of intact dried Ascophyllum nodosum seaweed on piglet performances, gut bacteria and function and plasma oxidative status. A total of 160 weaned piglets (21 days, 6.59 ± 0.91 kg) were allocated to four dietary treatments with eight pen replicates of five animals each for 28 days: a control diet; based on cereals, soybean meal and milk products, and three basal diets supplemented with either 2.5, 5.0 or 10.0 g dried seaweed per kg. At day 12/13 one piglet from each pen was sacrificed. Plasma samples were taken to determine parameters of oxidative status. Digesta were sampled for microbiological plate countings onto selective media and molecular analysis using PCR-DGGE. Small intestinal tissue was taken for morphological and electro-physiological determinations. Data were analysed by a linear model with treatment as fixed effect. A. nodosum supplementation had no effect on daily weight gain, nor did it alter feed conversion ratio. Plate countings failed to reveal differences among treatments. Dendograms prepared using PCR-DGGE banding patterns did not indicate clustering of microbial profiles based on diet supplement. Plasma oxidative status and outcome of morphology and of electro-physiological measurements from gut tissues were similar for all treatments. Thus, the addition of A. nodosum seaweed to well digestible diets did not enhance performances of piglets nor some gut health parameters and plasma oxidative status.
Collapse
Affiliation(s)
- J Michiels
- Faculty of Biosciences and Landscape Architecture, University College Ghent, Ghent, Belgium
| | | | | | | | | | | | | |
Collapse
|
159
|
Cavalcante-Silva LHA, da Matta CBB, de Araújo MV, Barbosa-Filho JM, de Lira DP, de Oliveira Santos BV, de Miranda GEC, Alexandre-Moreira MS. Antinociceptive and anti-inflammatory activities of crude methanolic extract of red alga Bryothamnion triquetrum. Mar Drugs 2012; 10:1977-1992. [PMID: 23118715 PMCID: PMC3475267 DOI: 10.3390/md10091977] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Revised: 08/06/2012] [Accepted: 09/04/2012] [Indexed: 01/13/2023] Open
Abstract
The marine environment is an extraordinary reservoir of bioactive natural products, many of which exhibit chemical and structural features not found in terrestrial natural products. In this regard, the aim of this study was to investigate the possible antinociceptive and anti-inflammatory activities of a crude methanolic extract of the red alga Bryothamnion triquetrum (BT-MeOH) in murine models. Groups of Swiss mice of both sexes (25-30 g) were used throughout the experiments. The potential antinociceptive of BT-MeOH was evaluated by means of the following tests: acetic acid-induced writhing, hot-plate test and glutamate- and formalin-induced nociception. The anti-inflammatory activity of BT-MeOH was investigated using the zymosan A-induced peritonitis test. The tests were conducted using 100 mg/kg (p.o.) BT-MeOH, 33.3 mg/kg (p.o.) dipyrone, 35.7 mg/kg (p.o.) indomethacin and 5.7 mg/kg (s.c.) morphine. The extract and all standard drugs were administered 40 min before the nociceptive/inflammatory stimulus. In the acetic acid-induced writhing test, BT-MeOH and dipyrone inhibited the nociceptive response by 55.9% (22.2 ± 2.0 writhings; p < 0.01) and 80.9% (9.6 ± 2.1 writhings; p < 0.01). In the hot-plate test, BT-MeOH did not increase the latency time of the animals in the time evaluated. In addition, BT-MeOH inhibited glutamate-induced nociception by 50.1%. While BT-MeOH did not inhibit the neurogenic phase in formalin-induced nociception, the inflammatory phase was inhibited by 53.1% (66.8 ± 14.2 s; p < 0.01). Indomethacin inhibited the inflammatory phase by 60.2% (56.8 ± 8.7 s; p < 0.01). In the zymosan-induced peritonitis test, BT-MeOH inhibited 55.6% (6.6 ± 0.2 × 10(6) leukocytes/mL; p < 0.01) of leukocyte migration, while indomethacin inhibited 78.1% (3.2 ± 0.1 × 10(6) leukocytes/mL; p < 0.01). Based on the results obtained in this study, we conclude that BT-MeOH has peripheral antinociceptive and anti-inflammatory activities. However, more studies need to be conducted to confirm these properties.
Collapse
Affiliation(s)
- Luiz Henrique Agra Cavalcante-Silva
- LaFI-Laboratory of Pharmacology and Immunity, Institute of Biological Sciences and Health, Federal University of Alagoas, Maceió 57020-720, AL, Brazil; (L.H.A.C.-S.); (C.B.B.M.); (M.V.A.)
| | - Carolina Barbosa Brito da Matta
- LaFI-Laboratory of Pharmacology and Immunity, Institute of Biological Sciences and Health, Federal University of Alagoas, Maceió 57020-720, AL, Brazil; (L.H.A.C.-S.); (C.B.B.M.); (M.V.A.)
| | - Morgana Vital de Araújo
- LaFI-Laboratory of Pharmacology and Immunity, Institute of Biological Sciences and Health, Federal University of Alagoas, Maceió 57020-720, AL, Brazil; (L.H.A.C.-S.); (C.B.B.M.); (M.V.A.)
| | - José Maria Barbosa-Filho
- Laboratory of Technology Pharmaceutical, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil; (J.M.B.-F.); (D.P.L.)
| | - Daysianne Pereira de Lira
- Laboratory of Technology Pharmaceutical, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil; (J.M.B.-F.); (D.P.L.)
| | | | - George Emmanuel C. de Miranda
- Laboratory of Marine Algae, Department of Systematics and Ecology, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil;
| | - Magna Suzana Alexandre-Moreira
- LaFI-Laboratory of Pharmacology and Immunity, Institute of Biological Sciences and Health, Federal University of Alagoas, Maceió 57020-720, AL, Brazil; (L.H.A.C.-S.); (C.B.B.M.); (M.V.A.)
| |
Collapse
|
160
|
Hollants J, Leliaert F, De Clerck O, Willems A. What we can learn from sushi: a review on seaweed-bacterial associations. FEMS Microbiol Ecol 2012; 83:1-16. [PMID: 22775757 DOI: 10.1111/j.1574-6941.2012.01446.x] [Citation(s) in RCA: 123] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2012] [Revised: 06/27/2012] [Accepted: 07/03/2012] [Indexed: 12/20/2022] Open
Abstract
Many eukaryotes are closely associated with bacteria which enable them to expand their physiological capacities. Associations between algae (photosynthetic eukaryotes) and bacteria have been described for over a hundred years. A wide range of beneficial and detrimental interactions exists between macroalgae (seaweeds) and epi- and endosymbiotic bacteria that reside either on the surface or within the algal cells. While it has been shown that these chemically mediated interactions are based on the exchange of nutrients, minerals, and secondary metabolites, the diversity and specificity of macroalgal-bacterial relationships have not been thoroughly investigated. Some of these alliances have been found to be algal or bacterial species-specific, whereas others are widespread among different symbiotic partners. Reviewing 161 macroalgal-bacterial studies from the last 55 years, a definite bacterial core community, consisting of Gammaproteobacteria, CFB group, Alphaproteobacteria, Firmicutes, and Actinobacteria species, seems to exist which is specifically (functionally) adapted to an algal host-associated lifestyle. Because seaweed-bacterial associations are appealing from evolutionary and applied perspectives, future studies should integrate the aspects of diverse biological fields.
Collapse
Affiliation(s)
- Joke Hollants
- Laboratory of Microbiology, Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium.
| | | | | | | |
Collapse
|
161
|
Chaves LDS, Nicolau LAD, Silva RO, Barros FCN, Freitas ALP, Aragão KS, Ribeiro RDA, Souza MHLP, Barbosa ALDR, Medeiros JVR. Antiinflammatory and antinociceptive effects in mice of a sulfated polysaccharide fraction extracted from the marine red algaeGracilaria caudata. Immunopharmacol Immunotoxicol 2012; 35:93-100. [DOI: 10.3109/08923973.2012.707211] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
162
|
Georg Jensen M, Kristensen M, Astrup A. Effect of alginate supplementation on weight loss in obese subjects completing a 12-wk energy-restricted diet: a randomized controlled trial. Am J Clin Nutr 2012; 96:5-13. [PMID: 22648709 DOI: 10.3945/ajcn.111.025312] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Acute studies with alginate-based preloads suggested that these strong gelling fibers may induce increased feelings of satiety and reduce energy intakes. However, the long-term efficacy and safety of alginate supplementation on body weight regulation are lacking. OBJECTIVE The primary aim of the study was to investigate the effects in subjects of alginate supplementation in conjunction with energy restriction (-300 kcal/d) on loss of body weight and fat and, second, on metabolic risk markers in comparison with in a placebo group. DESIGN In a parallel, double-blind, placebo-controlled study, we randomly assigned 96 obese subjects to either an energy-restricted diet plus a placebo preload supplement or an energy-restricted diet plus an alginate-based preload supplement (15 g fiber). The preload was administered as a beverage 3 times/d before main meals for a period of 12 wk. RESULTS No differences in loss of body weight and fat between groups were shown in the intension-to-treat (ITT) analysis (P > 0.1). However, in the completer analysis (n = 80), we showed a greater weight loss with alginate (6.78 ± 3.67 kg) than with the placebo (5.04 ± 3.40 kg) (P = 0.03), which was mainly attributed to a reduction in the percentage of body fat (P = 0.03). In the ITT analysis, a larger decrease in systolic and diastolic blood pressure was shown in the placebo group than in the alginate group (P < 0.05). Plasma concentrations of glucose, insulin, C-reactive protein, and ghrelin, HOMA-IR, and lipid metabolism did not differ between treatment groups in the ITT analysis (P > 0.1). CONCLUSION These results suggest that alginate supplementation as an adjunct to energy restriction may improve weight loss in obese subjects who complete a 12-wk dietary intervention.
Collapse
Affiliation(s)
- Morten Georg Jensen
- Department of Human Nutrition, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark.
| | | | | |
Collapse
|
163
|
Georg Jensen M, Knudsen J, Viereck N, Kristensen M, Astrup A. Functionality of alginate based supplements for application in human appetite regulation. Food Chem 2012. [DOI: 10.1016/j.foodchem.2011.11.042] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
164
|
Patel S, Goyal A. The current trends and future perspectives of prebiotics research: a review. 3 Biotech 2012. [DOI: 10.1007/s13205-012-0044-x] [Citation(s) in RCA: 123] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
|
165
|
Vidanarachchi JK, Kurukulasuriya MS, Malshani Samaraweera A, Silva KFST. Applications of marine nutraceuticals in dairy products. ADVANCES IN FOOD AND NUTRITION RESEARCH 2012; 65:457-78. [PMID: 22361206 DOI: 10.1016/b978-0-12-416003-3.00030-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
The concept of nutraceutical has been derived by coining the terms "nutrition" and "pharmaceutical". In this context, active substances with pharmaceutical properties are delivered to the humans through food-based approaches to prevent or treat certain disease conditions. Since the natural sources are recognized as safe for human consumption, the active substances produced in the diverse group of marine organisms have a wide role in the nutraceutical industry. These marine-derived active ingredients include certain polysaccharides, polyphenols, bioactive peptides, polyunsaturated fatty acids, and carotenoids which are known to have anticancer, anti-inflammatory, antioxidant, antiobese, hypocholesteroleic, antimicrobial, prebiotic, and probiotic activity enabling them to be applied as nutraceuticals. As the dairy products are widely accepted by the consumers, the delivering of nutraceuticals through dairy products have received a greater attention of the dairy industry. Since the incorporation of marine-derived active ingredients into the dairy products have caused minimal changes in the physico-chemical properties of the final product, marine-derived substances have been widely applied and have the potential to be applied as nutraceuticals in the dairy industry.
Collapse
Affiliation(s)
- Janak K Vidanarachchi
- Department of Animal Science, Faculty of Agriculture, University of Peradeniya, Peradeniya, Sri Lanka.
| | | | | | | |
Collapse
|
166
|
Schultz Moreira AR, Benedí J, González-Torres L, Olivero-David R, Bastida S, Sánchez-Reus MI, González-Muñoz MJ, Sánchez-Muniz FJ. Effects of diet enriched with restructured meats, containing Himanthalia elongata, on hypercholesterolaemic induction, CYP7A1 expression and antioxidant enzyme activity and expression in growing rats. Food Chem 2011. [DOI: 10.1016/j.foodchem.2011.06.019] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
167
|
Vera J, Castro J, Gonzalez A, Moenne A. Seaweed polysaccharides and derived oligosaccharides stimulate defense responses and protection against pathogens in plants. Mar Drugs 2011; 9:2514-2525. [PMID: 22363237 PMCID: PMC3280573 DOI: 10.3390/md9122514] [Citation(s) in RCA: 143] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2011] [Revised: 11/17/2011] [Accepted: 11/18/2011] [Indexed: 12/02/2022] Open
Abstract
Plants interact with the environment by sensing "non-self" molecules called elicitors derived from pathogens or other sources. These molecules bind to specific receptors located in the plasma membrane and trigger defense responses leading to protection against pathogens. In particular, it has been shown that cell wall and storage polysaccharides from green, brown and red seaweeds (marine macroalgae) corresponding to ulvans, alginates, fucans, laminarin and carrageenans can trigger defense responses in plants enhancing protection against pathogens. In addition, oligosaccharides obtained by depolymerization of seaweed polysaccharides also induce protection against viral, fungal and bacterial infections in plants. In particular, most seaweed polysaccharides and derived oligosaccharides trigger an initial oxidative burst at local level and the activation of salicylic (SA), jasmonic acid (JA) and/or ethylene signaling pathways at systemic level. The activation of these signaling pathways leads to an increased expression of genes encoding: (i) Pathogenesis-Related (PR) proteins with antifungal and antibacterial activities; (ii) defense enzymes such as pheylalanine ammonia lyase (PAL) and lipoxygenase (LOX) which determine accumulation of phenylpropanoid compounds (PPCs) and oxylipins with antiviral, antifugal and antibacterial activities and iii) enzymes involved in synthesis of terpenes, terpenoids and/or alkaloids having antimicrobial activities. Thus, seaweed polysaccharides and their derived oligosaccharides induced the accumulation of proteins and compounds with antimicrobial activities that determine, at least in part, the enhanced protection against pathogens in plants.
Collapse
Affiliation(s)
| | | | | | - Alejandra Moenne
- Laboratory of Marine Biotechnology, Faculty of Chemistry and Biology, University of Santiago, Santiago 9160000, Chile; (J.V.); (J.C.); (A.G.)
| |
Collapse
|
168
|
Therapies from fucoidan; multifunctional marine polymers. Mar Drugs 2011; 9:1731-1760. [PMID: 22072995 PMCID: PMC3210604 DOI: 10.3390/md9101731] [Citation(s) in RCA: 215] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2011] [Revised: 09/22/2011] [Accepted: 09/26/2011] [Indexed: 12/22/2022] Open
Abstract
Published research on fucoidans increased three fold between 2000 and 2010. These algal derived marine carbohydrate polymers present numerous valuable bioactivities. This review discusses the role for fucoidan in the control of acute and chronic inflammation via selectin blockade, enzyme inhibition and inhibiting the complement cascade. The recent data on toxicology and uptake of fucoidan is detailed together with a discussion on the comparative activities of fractions of fucoidan from different sources. Recent in vivo, in vitro and clinical research related to diverse clinical needs is discussed. Targets include osteoarthritis, kidney and liver disease, neglected infectious diseases, hemopoietic stem cell modulation, protection from radiation damage and treatments for snake envenomation. In recent years, the production of well characterized reproducible fucoidan fractions on a commercial scale has become possible making therapies from fucoidan a realizable goal.
Collapse
|
169
|
Bitencourt MAO, Dantas GR, Lira DP, Barbosa-Filho JM, de Miranda GEC, de Oliveira Santos BV, Souto JT. Aqueous and Methanolic Extracts of Caulerpa mexicana Suppress Cell Migration and Ear Edema Induced by Inflammatory Agents. Mar Drugs 2011; 9:1332-1345. [PMID: 21892348 PMCID: PMC3164376 DOI: 10.3390/md9081332] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Revised: 07/18/2011] [Accepted: 08/04/2011] [Indexed: 12/02/2022] Open
Abstract
The regulation of the inflammatory response is essential to maintaining homeostasis. Several studies have investigated new drugs that may contribute to avoiding or minimizing excessive inflammatory process. The aim of this study was to evaluate the effect of extracts of green algae Caulerpa mexicana on models inflammation. In mice, the inflammatory peritonitis model is induced by zymosan. Previous treatment of mice with aqueous and methanolic extracts of C. mexicana was able to suppress the cell migration to the peritoneal cavity, in a time-dependent but not in a dose-dependent manner. The treatment of mice with C. mexicana extracts also decreased the xylene-induced ear edema, exerting strong inhibitory leukocyte migration elicited by zymosan into the air pouch. We concluded that administration of the extracts resulted in a reduction of cell migration to different sites as well as a decrease in edema formation induced by chemical irritants. This study demonstrates for the first time the anti-inflammatory effect of aqueous and methanolic extracts from the green marine algae Caulerpa mexicana.
Collapse
Affiliation(s)
- Mariana Angelica Oliveira Bitencourt
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Avenida Salgado Filho, BR 101, University Campus, Lagoa Nova, 59078-900, Natal, RN, Brazil; E-Mails: (M.A.O.B.); (G.R.D.)
| | - Gracielle Rodrigues Dantas
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Avenida Salgado Filho, BR 101, University Campus, Lagoa Nova, 59078-900, Natal, RN, Brazil; E-Mails: (M.A.O.B.); (G.R.D.)
| | - Daysianne Pereira Lira
- Laboratory of Technology Pharmaceutical, Federal University of Paraiba, 58051-900, Joao Pessoa, PB, Brazil; E-Mails: (D.P.L.); (J.M.B.-F.)
| | - Jose Maria Barbosa-Filho
- Laboratory of Technology Pharmaceutical, Federal University of Paraiba, 58051-900, Joao Pessoa, PB, Brazil; E-Mails: (D.P.L.); (J.M.B.-F.)
| | | | - Barbara Viviana de Oliveira Santos
- Laboratory of Technology Pharmaceutical, Federal University of Paraiba, 58051-900, Joao Pessoa, PB, Brazil; E-Mails: (D.P.L.); (J.M.B.-F.)
| | - Janeusa Trindade Souto
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Avenida Salgado Filho, BR 101, University Campus, Lagoa Nova, 59078-900, Natal, RN, Brazil; E-Mails: (M.A.O.B.); (G.R.D.)
| |
Collapse
|
170
|
de Almeida CLF, Falcão HDS, Lima GRDM, Montenegro CDA, Lira NS, de Athayde-Filho PF, Rodrigues LC, de Souza MDFV, Barbosa-Filho JM, Batista LM. Bioactivities from marine algae of the genus Gracilaria. Int J Mol Sci 2011; 12:4550-73. [PMID: 21845096 PMCID: PMC3155369 DOI: 10.3390/ijms12074550] [Citation(s) in RCA: 136] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2011] [Revised: 06/26/2011] [Accepted: 07/05/2011] [Indexed: 11/16/2022] Open
Abstract
Seaweeds are an important source of bioactive metabolites for the pharmaceutical industry in drug development. Many of these compounds are used to treat diseases like cancer, acquired immune-deficiency syndrome (AIDS), inflammation, pain, arthritis, as well as viral, bacterial, and fungal infections. This paper offers a survey of the literature for Gracilaria algae extracts with biological activity, and identifies avenues for future research. Nineteen species of this genus that were tested for antibacterial, antiviral, antifungal, antihypertensive, cytotoxic, spermicidal, embriotoxic, and anti-inflammatory activities are cited from the 121 references consulted.
Collapse
Affiliation(s)
- Cynthia Layse F. de Almeida
- Department of Pharmaceutical Sciences, Laboratory of Pharmaceutical Technology, Federal University of Paraiba, João Pessoa, PB 58051-900, Brazil; E-Mails: (C.L.F.A.); (H.S.F.); (G.R.M.L.); (C.A.M.); (N.S.L.); (P.F.A.-F); (L.C.R.); (M.F.V.S.); (J.M.B.-F.)
| | - Heloina de S. Falcão
- Department of Pharmaceutical Sciences, Laboratory of Pharmaceutical Technology, Federal University of Paraiba, João Pessoa, PB 58051-900, Brazil; E-Mails: (C.L.F.A.); (H.S.F.); (G.R.M.L.); (C.A.M.); (N.S.L.); (P.F.A.-F); (L.C.R.); (M.F.V.S.); (J.M.B.-F.)
| | - Gedson R. de M. Lima
- Department of Pharmaceutical Sciences, Laboratory of Pharmaceutical Technology, Federal University of Paraiba, João Pessoa, PB 58051-900, Brazil; E-Mails: (C.L.F.A.); (H.S.F.); (G.R.M.L.); (C.A.M.); (N.S.L.); (P.F.A.-F); (L.C.R.); (M.F.V.S.); (J.M.B.-F.)
| | - Camila de A. Montenegro
- Department of Pharmaceutical Sciences, Laboratory of Pharmaceutical Technology, Federal University of Paraiba, João Pessoa, PB 58051-900, Brazil; E-Mails: (C.L.F.A.); (H.S.F.); (G.R.M.L.); (C.A.M.); (N.S.L.); (P.F.A.-F); (L.C.R.); (M.F.V.S.); (J.M.B.-F.)
| | - Narlize S. Lira
- Department of Pharmaceutical Sciences, Laboratory of Pharmaceutical Technology, Federal University of Paraiba, João Pessoa, PB 58051-900, Brazil; E-Mails: (C.L.F.A.); (H.S.F.); (G.R.M.L.); (C.A.M.); (N.S.L.); (P.F.A.-F); (L.C.R.); (M.F.V.S.); (J.M.B.-F.)
| | - Petrônio F. de Athayde-Filho
- Department of Pharmaceutical Sciences, Laboratory of Pharmaceutical Technology, Federal University of Paraiba, João Pessoa, PB 58051-900, Brazil; E-Mails: (C.L.F.A.); (H.S.F.); (G.R.M.L.); (C.A.M.); (N.S.L.); (P.F.A.-F); (L.C.R.); (M.F.V.S.); (J.M.B.-F.)
| | - Luis C. Rodrigues
- Department of Pharmaceutical Sciences, Laboratory of Pharmaceutical Technology, Federal University of Paraiba, João Pessoa, PB 58051-900, Brazil; E-Mails: (C.L.F.A.); (H.S.F.); (G.R.M.L.); (C.A.M.); (N.S.L.); (P.F.A.-F); (L.C.R.); (M.F.V.S.); (J.M.B.-F.)
| | - Maria de Fátima V. de Souza
- Department of Pharmaceutical Sciences, Laboratory of Pharmaceutical Technology, Federal University of Paraiba, João Pessoa, PB 58051-900, Brazil; E-Mails: (C.L.F.A.); (H.S.F.); (G.R.M.L.); (C.A.M.); (N.S.L.); (P.F.A.-F); (L.C.R.); (M.F.V.S.); (J.M.B.-F.)
| | - José M. Barbosa-Filho
- Department of Pharmaceutical Sciences, Laboratory of Pharmaceutical Technology, Federal University of Paraiba, João Pessoa, PB 58051-900, Brazil; E-Mails: (C.L.F.A.); (H.S.F.); (G.R.M.L.); (C.A.M.); (N.S.L.); (P.F.A.-F); (L.C.R.); (M.F.V.S.); (J.M.B.-F.)
| | - Leônia M. Batista
- Department of Pharmaceutical Sciences, Laboratory of Pharmaceutical Technology, Federal University of Paraiba, João Pessoa, PB 58051-900, Brazil; E-Mails: (C.L.F.A.); (H.S.F.); (G.R.M.L.); (C.A.M.); (N.S.L.); (P.F.A.-F); (L.C.R.); (M.F.V.S.); (J.M.B.-F.)
| |
Collapse
|
171
|
Fitzgerald C, Gallagher E, Tasdemir D, Hayes M. Heart health peptides from macroalgae and their potential use in functional foods. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:6829-6836. [PMID: 21574559 DOI: 10.1021/jf201114d] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Macroalgae have for centuries been consumed whole among the East Asian populations of China, Korea, and Japan. Due to the environment in which they grow, macroalgae produce unique and interesting biologically active compounds. Protein can account for up to 47% of the dry weight of macroalgae depending on species and time of cultivation and harvest. Peptides derived from marcoalgae are proven to have hypotensive effects in the human circulatory system. Hypertension is one of the major, yet controllable, risk factors in cardiovascular disease (CVD). CVD is the main cause of death in Europe, accounting for over 4.3 million deaths each year. In the United States it affects one in three individuals. Hypotensive peptides derived from marine and other sources have already been incorporated into functional foods such as beverages and soups. The purpose of this review is to highlight the potential of heart health peptides from macroalgae and to discuss the feasibility of expanding the variety of foods these peptides may be used in.
Collapse
Affiliation(s)
- Ciaran Fitzgerald
- Food BioSciences Department, Teagasc Food Research Centre, Ashtown, Dublin 15, Ireland
| | | | | | | |
Collapse
|
172
|
Teas J, Irhimeh MR, Druker S, Hurley TG, Hébert JR, Savarese TM, Kurzer MS. Serum IGF-1 concentrations change with soy and seaweed supplements in healthy postmenopausal American women. Nutr Cancer 2011; 63:743-8. [PMID: 21711174 PMCID: PMC3150209 DOI: 10.1080/01635581.2011.579383] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Insulin-like growth factor 1 (IGF-1) is an anabolic hormone important for growth and development. However, high-circulating serum concentrations in adults are associated with increased risk of postmenopausal breast cancer. Nutritional status and specific foods influence serum IGF-1 concentrations. Breast cancer incidence is typically low in Asian countries where soy is commonly consumed. Paradoxically, soy supplement trials in American women have reported significant increases in IGF-1. Seaweed also is consumed regularly in Asian countries where breast cancer risk is low. We investigated the possibility that seaweed could modify soy-associated increases in IGF-1 in American women. Thirty healthy postmenopausal women (mean age 58 yr) participated in this 14-wk double-blinded, randomized, placebo-controlled crossover clinical trial. Participants consumed 5 g/day placebo or seaweed (Alaria esculenta) in capsules for 7 wk. During the 7th wk, a high-soy protein isolate powder was added (2 mg/kg body weight aglycone equivalent isoflavones). Overnight fasting blood samples were collected after each intervention period. Soy significantly increased serum IGF-1 concentrations compared to the placebo (21.2 nmol/L for soy vs. 16.9 nmol/L for placebo; P = 0.0001). The combination of seaweed and soy significantly reduced this increase by about 40% (21.2 nmol/L for soy alone vs. 19.4 nmol/L; P = 0.01). Concurrent seaweed and soy consumption may be important in modifying the effect of soy on IGF-1 serum concentrations.
Collapse
Affiliation(s)
- Jane Teas
- Cancer Research Center of the University of South Carolina, Columbia, South Carolina 29208, USA.
| | | | | | | | | | | | | |
Collapse
|
173
|
Lordan S, Ross RP, Stanton C. Marine bioactives as functional food ingredients: potential to reduce the incidence of chronic diseases. Mar Drugs 2011; 9:1056-1100. [PMID: 21747748 PMCID: PMC3131561 DOI: 10.3390/md9061056] [Citation(s) in RCA: 326] [Impact Index Per Article: 25.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2011] [Revised: 06/02/2011] [Accepted: 06/08/2011] [Indexed: 12/31/2022] Open
Abstract
The marine environment represents a relatively untapped source of functional ingredients that can be applied to various aspects of food processing, storage, and fortification. Moreover, numerous marine-based compounds have been identified as having diverse biological activities, with some reported to interfere with the pathogenesis of diseases. Bioactive peptides isolated from fish protein hydrolysates as well as algal fucans, galactans and alginates have been shown to possess anticoagulant, anticancer and hypocholesterolemic activities. Additionally, fish oils and marine bacteria are excellent sources of omega-3 fatty acids, while crustaceans and seaweeds contain powerful antioxidants such as carotenoids and phenolic compounds. On the basis of their bioactive properties, this review focuses on the potential use of marine-derived compounds as functional food ingredients for health maintenance and the prevention of chronic diseases.
Collapse
Affiliation(s)
- Sinéad Lordan
- Teagasc Food Research Centre Moorepark, Fermoy, Co. Cork, Ireland; E-Mails: (S.L.); (R.P.R.)
| | - R. Paul Ross
- Teagasc Food Research Centre Moorepark, Fermoy, Co. Cork, Ireland; E-Mails: (S.L.); (R.P.R.)
| | - Catherine Stanton
- Teagasc Food Research Centre Moorepark, Fermoy, Co. Cork, Ireland; E-Mails: (S.L.); (R.P.R.)
| |
Collapse
|
174
|
Antinociceptive and anti-inflammatory activity from algae of the genus Caulerpa. Mar Drugs 2011; 9:307-18. [PMID: 21556161 PMCID: PMC3083652 DOI: 10.3390/md9030307] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Revised: 02/19/2011] [Accepted: 02/24/2011] [Indexed: 01/26/2023] Open
Abstract
Marine natural products have been the focus of discovery for new products of chemical and pharmacological interest. The aim of this study was to evaluate the antinociceptive activity of the methanolic (ME), acetate (AE), hexanic (HE) and chloroform (CE) extracts obtained from Caulerpa mexicana, and ME, CE and HE obtained from Caulerpa sertularioides. These marine algae are found all over the world, mainly in tropical regions. Models such as the writhing test, the hot plate test and formalin-induced nociception test were used to evaluate antinociceptive activity in laboratory mice. In the writhing test, all the extracts were administered orally at a concentration of 100 mg/kg, and induced high peripheral antinociceptive activity, with a reduction in the nociception induced by acetic acid above 65%. In the hot plate test, treatment with extracts from C. sertularioides (100 mg/kg, p.o.) did not significantly increase the latency of response, although the ME, AE and HE from C. mexicana showed activity in this model. This result suggests that these extracts exhibit antinociceptive activity. In the formalin test, it was observed that ME, AE and HE obtained from C. mexicana reduced the effects of formalin in both phases. On the other hand only CE from C. sertularioides induced significant inhibition of the nociceptive response in the first phase. To better assess the potential anti-inflammatory activity of the extracts, the carrageenan-induced peritonitis test was used to test Caulerpa spp. extracts on cell migration into the peritoneal cavity. In this assay, all extracts evaluated were able to significantly inhibit leukocyte migration into the peritoneal cavity in comparison with carrageenan. These data demonstrate that extracts from Caulerpa species elicit pronounced antinociceptive and anti-inflamatory activity against several nociception models. However, pharmacological and chemical studies are continuing in order to characterize the mechanism(s) responsible for the antinociceptive action and also to identify the active principles present in the Caulerpa species.
Collapse
|
175
|
Abstract
As modern lifestyles and new feeding habits settle in the world, noncommunicable diseases (NCDs) have evolved to be major causes of disability in developing as well as developed countries. As a concomitant effect, there is a growing interest in natural, healthy food and an increasing awareness of risk factors and determinants of disease. This chapter describes some nutritional facts about seaweeds, which have been used as food since ancient times in China, Japan, Egypt, and India and comments on the potential utilization of marine algae as functional foods. This concept and the description of metabolic syndrome are used as a basis to comprehension of seaweeds against two dreadful illnesses of our times: high blood pressure and cancer.
Collapse
|
176
|
Cetin H, Gokoglu M, Oz E. Larvicidal activity of the extract of seaweed, Caulerpa scalpelliformis, against Culex pipiens. JOURNAL OF THE AMERICAN MOSQUITO CONTROL ASSOCIATION 2010; 26:433-435. [PMID: 21290940 DOI: 10.2987/10-6046.1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The larvicidal efficacy of the acetone extract of the thalli of Caulerpa scalpelliformis var. denticulata was determined against late 2nd to early 3rd instars of Culex pipiens at concentrations ranging from 100 to 2,000 parts per million (ppm). At 1,200 ppm, the extract caused >70% larval mortality at 24-, 48-, and 72-h exposure. The LC50 (lethal concentration) and LC90 values of C. scalpelliformis were 338.91 and 1,891.31 ppm, respectively. Our data showed that this species of seaweed contains components with larvicidal properties against mosquitoes.
Collapse
Affiliation(s)
- Huseyin Cetin
- Biology Department, Faculty of Arts and Science, Akdeniz University, 07058 Antalya, Turkey
| | | | | |
Collapse
|