Caulerpa lentillifera (sea grapes) is widely consumed in SouthEast Asia as a low-energy food with high contents of vitamins and minerals. This study investigated dried sea grapes containing 16.6% insoluble fibre commercially produced in Vietnam as an intervention. We hypothesised that insoluble fibre is the primary metabolite that will reverse diet-induced metabolic syndrome. Male Wistar rats (n = 48) were randomly allocated to four groups in a 16 week protocol. Two groups were fed either corn starch (C) or high-carbohydrate, high-fat (H) diets for the full 16 weeks. The other two groups received C and H diets for eight weeks and then received C. lentillifera added to these diets for the final eight weeks (CCL and HCL, respectively). High-carbohydrate, high-fat diet-fed rats developed obesity, hypertension, dyslipidaemia, fatty liver disease and increased left ventricular collagen deposition. C. lentillifera supplementation in HCL rats decreased body weight, systolic blood pressure, plasma concentrations of total cholesterol and non-esterified fatty acids, inflammatory cells in heart and liver, and visceral adiposity. The Firmicutes to Bacteroidetes ratio decreased in the gut microbiota of HCL rats. Therefore, C. lentillifera attenuated cardiovascular and metabolic symptoms of metabolic syndrome in rats, possibly by preventing infiltration of inflammatory cells together with modulating gut microbiota.
Digital library
-
-
2What is HTL and why do we care?Hydrothermal liquefaction (HTL) is...the thermochemical conversion of biomass in a hot, pressurized water environment to break downsolid biopolymer structures to predominantly liquid componentsIt stands out among thermal conversion processes because...•HTL is a conceptually simple (i.e., heated pipe), scalable, and robust continuous process that canaccept a diverse range ofwet feedstocks(no drying!)•HTL results inhigh carbon yieldsto liquid hydrocarbons (up to 60%)•HTL produces a gravity-separable biocrude with low oxygen content (5–15 %) that can beupgraded in a single stage hydrotreater
-
In May 2011, the Membership Concerns Committee dis-tributed a survey to the American Fisheries Society (AFS)membership to gauge interest in and benefits of professionalcertification. The committee delivered its report to the gov-erning board and a full article for publication inFisheriesispending, but one highlight of this survey that the committee de-sired to report specifically was the perceived value provided tocertified members working in the private sector. The survey wassent to 875 certified members, and we received 338 responses(34% response rate), 21% of whom reported working in the pri-vate sector, such as consulting
-
To develop the most productive plants on earth - microalgae - to produce biofuels, nutritional oils, aquaculture and animal feeds while simultaneously reducing industrial emmissions of CO2.
-
Caulerpa lentillifera (sea grapes) is widely consumed in South-East Asia as a low-energy food with high contents of vitamins and minerals. This study investigated dried sea grapes containing 16.6% insoluble fibre commercially produced in Vietnam as an intervention. We hypothesised that insoluble fibre is the primary metabolite that will reverse diet-induced metabolic syndrome. Male Wistar rats (n = 48) were randomly allocated to four groups in a 16 week protocol. Two groups were fed either corn starch (C) or high-carbohydrate, high-fat (H) diets for the full 16 weeks. The other two groups received C and H diets for eight weeks and then received C. lentillifera added to these diets for the final eight weeks (CCL and HCL, respectively). High-carbohydrate, high-fat diet-fed rats developed obesity, hypertension, dyslipidaemia, fatty liver disease and increased left ventricular collagen deposition. C. lentillifera supplementation in HCL rats decreased body weight, systolic blood pressure, plasma concentrations of total cholesterol and non-esterified fatty acids, inflammatory cells in heart and liver, and visceral adiposity. The Firmicutes to Bacteroidetes ratio decreased in the gut microbiota of HCL rats. Therefore, C. lentillifera attenuated cardiovascular and metabolic symptoms of metabolic syndrome in rats, possibly by preventing infiltration of inflammatory cells together with modulating gut microbiota.
-
The present Bulletin which includes catalogues of molluscs, prawns, stomatopods and marine algae is in continuation of the two earlier ones dealing with other groups in the Reference Collections of the Central Marine Fisheries Research Institute. Of the molluscs 366 species have been listed representing Gastropoda, Bivalvia and Cephalopoda. A good number of them is of interest to amateur conchologists; there is a fair representation of economically important species, and a few are rare or little known forms of scientific interest. Ninety-five prawn species are catalogued, the majority of which support the important prawn fisheries of the country. Among those included here is a number of hitherto unrecorded deep sea prawns from grounds discovered by exploratory trawling in recent years. The collection is a very valuable one for reference purposes in view of the great economic importance of this group.
-
Seven case studies are presented on commercial seaweed resources; five on wild crops, respectively Ascophyllum nodosum, Chondrus crispus, Gelidium, Laminaria longicruris and Macrocystis, are provided along with case studies of the farmed crops of Eucheuma and Laminaria japonica. Individually the cases range from descriptions of the wild crops and their management to the managed production of farmed crops including, in several examples, some information on economics and/or processing. These initial seven cases range from those emphaizing but one species from but one part of one country, to studies of a genus as it occurs commercially throughout the world.
-
Biomethane is a flexible energy vector that can be used as a renewable fuel for both the heat and transport sectors. Recent EU legislation encourages the production and use of advanced, third generation biofuels with improved sustainability for future energy systems. The integration of technologies such as anaerobic digestion, gasification, and power to gas, along with advanced feedstocks such as algae will be at the forefront in meeting future sustainability criteria and achieving a green gas supply for the gas grid. This paper explores the relevant pathways in which an integrated biomethane industry could potentially materialise and identifies and discusses the latest biotechnological advances in the production of renewable gas. Three scenarios of cascading biomethane systems are developed.
-
CARRAGEENAN IS A COMMON FOOD ADDITIVE extracted from red seaweed. For the past four decades, scientists have warned that the use of carrageenan in food is not safe. Animal studies and in-vitro studies with human cells have repeatedly shown that food-grade carrageenan* causes gastrointestinal inflammation and higher rates of intestinal lesions, ulcerations, and even malignant tumors. In fact, roughly 3,855 research papers show that carrageenan induces inflammation, most of which test the effectiveness of anti-inflammatory drugs. In the past decade, researchers have successfully identified several ways in which food-grade carrageenan causes harm. The chemical structure of carrageenan—unique chemical bondsnot found in other seaweeds or gums—affects the body in several ways. Most notably, it triggers an immune reaction, which leads to inflammation in the gastrointestinal system. Prolonged inflammation is a precursor to more serious diseases, including cancer.
-
The yield and physicochemical properties of carrageenan from Eucheuma isiforme harvested at the Yucatán coast were investigated. Carrageenan was extracted under different alkali concentrations (0, 1, 3, 5 and 7% KOH) and treatment durations (3, 4 and 5 h). Native carrageenan, extracted without KOH, had the highest yield (;44.6%) independently of treatment duration. After alkali treatment, carrageenan yield ranged from 35.3 to 31.8%. No significant differences in carrageenan yield were observed between 1 and 3% KOH. Native carrageenan had low viscosity values (39–57.0 cPs), whereas carrageenan extracted with 1% KOH at 3 and 4 h increased in viscosity (160.0–161.3 cPs). Alkali-treated carrageenan formed very weak gels (-50 g cm-2) in 1.5% solutions. The chemical analysis and FTIR spectra revealed a preponderantly iota-carrageenan extract. Extractions performed with 1% KOH for 3 h produced carrageenan with suitable properties to be considered as a substitute for traditional iota-carrageenan sources.
Pages
Marine Agronomy Group, CAFNRM, UH-Hilo
200 W. Kawili st., HI 96720, USA
Contact: Marine.Agronomy.Group@gmail.com
Funding for this web portal is provided by the World Wildlife Fund and the University of Hawaii-Hilo.