scholarly journals High Yields of Shrimp Oil Rich in Omega-3 and Natural Astaxanthin from Shrimp Waste

ACS Omega ◽  
2020 ◽  
Vol 5 (28) ◽  
pp. 17500-17505
Author(s):  
Antonino Scurria ◽  
Anne-Sylvie Fabiano Tixier ◽  
Claudia Lino ◽  
Mario Pagliaro ◽  
Fabio D’Agostino ◽  
...  
Keyword(s):  
Shrimp Waste ◽  
Omega 3 ◽  
Shrimp Oil ◽  
High Yields

scholarly journals High Yields of Shrimp Oil Rich in Omega-3 and Carotenoids: Extending to Shrimp Waste the Circular Economy Approach to Fish Oil Extraction

2020 ◽  
Author(s):  
Antonino Scurria ◽  
Anne-Sylvie Fabiano Tixier ◽  
Claudia Lino ◽  
Mario Pagliaro ◽  
Fabio D’Agostino ◽  
...  
Keyword(s):  
Fish Oil ◽  
Circular Economy ◽  
Low Cost ◽  
Oxidative Degradation ◽  
Omega 3 ◽  
Antioxidant Agent ◽  
Extraction Cycle ◽  
Shrimp Oil ◽  
High Yields ◽  
By Products

A shrimp oil rich in omega-3 lipids and carotenoids is obtained in remarkably high 5 wt% yield extending to pink shrimp processing waste (head and carapace) the circular economy approach to extract fish oil from fish processing by-products using d-limonene. Biobased limonene, a powerful antimicrobial and antioxidant agent, is an excellent solvent for both lipids and astaxanthin-based carotenoids preventing oxidative degradation during the extraction cycle including solvent and oil separation at 85°C. A new low cost route is established to extract valued marine oil from biowaste annually made available in over 2.2 million tonnes.

scholarly journals Shrimp Oil Extracted from Shrimp Processing By-Product Is a Rich Source of Omega-3 Fatty Acids and Astaxanthin-Esters, and Reveals Potential Anti-Adipogenic Effects in 3T3-L1 Adipocytes

Marine Drugs ◽  
2021 ◽  
Vol 19 (5) ◽  
pp. 259
Author(s):  
Indrayani Phadtare ◽  
Hitesh Vaidya ◽  
Kelly Hawboldt ◽  
Sukhinder Kaur Cheema
Keyword(s):  
Fatty Acids ◽  
Mrna Expression ◽  
Glucose Transporter ◽  
Rich Source ◽  
Omega 3 ◽  
Fat Accumulation ◽  
Lipogenic Genes ◽  
Expression Of Genes ◽  
Soxhlet Method ◽  
Shrimp Oil

The province of Newfoundland and Labrador, Canada, generates tons of shrimp processing by-product every year. Shrimp contains omega (n)-3 polyunsaturated fatty acids (PUFA) and astaxanthin (Astx), a potent antioxidant that exists in either free or esterified form (Astx-E). In this study, shrimp oil (SO) was extracted from the shrimp processing by-product using the Soxhlet method (hexane:acetone 2:3). The extracted SO was rich in phospholipids, n-3 PUFA, and Astx-E. The 3T3-L1 preadipocytes were differentiated to mature adipocytes in the presence or absence of various treatments for 8 days. The effects of SO were then investigated on fat accumulation, and the mRNA expression of genes involved in adipogenesis and lipogenesis in 3T3-L1 cells. The effects of fish oil (FO), in combination with Astx-E, on fat accumulation, and the mRNA expression of genes involved in adipogenesis and lipogenesis were also investigated. The SO decreased fat accumulation, compared to untreated cells, which coincided with lower mRNA expression of adipogenic and lipogenic genes. However, FO and FO + Astx-E increased fat accumulation, along with increased mRNA expression of adipogenic and lipogenic genes, and glucose transporter type 4 (Glut-4), compared to untreated cells. These findings have demonstrated that the SO is a rich source of n-3 PUFA and Astx-E, and has the potential to elicit anti-adipogenic effects. Moreover, the SO and FO appear to regulate adipogenesis and lipogenesis via independent pathways in 3T3-L1 cells.

Activity Engagement in Cognitive Aging: A Review of the Evidence

2013 ◽  
Vol 23 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Yvonne Rogalski ◽  
Muriel Quintana
Keyword(s):  
Older Adults ◽  
Cognitive Decline ◽  
Cognitive Aging ◽  
Social Activity ◽  
Current Evidence ◽  
Omega 3 ◽  
Neuroprotective Effects ◽  
Activity Engagement ◽  
Age Related ◽  
Age Related Cognitive Decline

The population of older adults is rapidly increasing, as is the number and type of products and interventions proposed to prevent or reduce the risk of age-related cognitive decline. Advocacy and prevention are part of the American Speech-Language-Hearing Association’s (ASHA’s) scope of practice documents, and speech-language pathologists must have basic awareness of the evidence contributing to healthy cognitive aging. In this article, we provide a brief overview outlining the evidence on activity engagement and its effects on cognition in older adults. We explore the current evidence around the activities of eating and drinking with a discussion on the potential benefits of omega-3 fatty acids, polyphenols, alcohol, and coffee. We investigate the evidence on the hypothesized neuroprotective effects of social activity, the evidence on computerized cognitive training, and the emerging behavioral and neuroimaging evidence on physical activity. We conclude that actively aging using a combination of several strategies may be our best line of defense against cognitive decline.

Omega-3 Caps Touted as Triglyceride Cutters

2005 ◽  
Vol 36 (9) ◽  
pp. 52
Author(s):  
BRUCE JANCIN
Keyword(s):  
Omega 3

Omega-3 Supplement Fails to Cut Post-MI Events

2009 ◽  
Vol 42 (12) ◽  
pp. 26
Author(s):  
MITCHEL L. ZOLER
Keyword(s):  
Omega 3

Alpkäse – herzhaft gesund oder ein Lifestyle-Produkt?

2005 ◽  
Vol 62 (9) ◽  
pp. 619-624 ◽  
Author(s):  
Hauswirth ◽  
Scheeder ◽  
Beer
Keyword(s):  
Omega 3

Noch im 19. Jahrhundert galten Milch- und Molkenkuren, und insbesondere Alpmilchprodukte, als äußerst gesund, sie wurden in Schweizer Kurhäusern als wichtiges therapeutisches Heilmittel gegen Schwindsucht (Lungentuberkulose) eingesetzt. Seit der Erkenntnis des Zusammenhangs zwischen gesättigten Fetten und Arteriosklerose gelten Milchprodukte wegen des hohen Anteils gesättigter Fette als ungesund und atherogen. Erstaunlicherweise scheinen wiederum die Alpmilchprodukte eine Besonderheit darzustellen: Verschiedene Untersuchungen haben in den letzten Jahren gezeigt, dass sich Milch, Käse und Butter von der Alp in ihrer Fettsäurenzusammensetzung von den im Tal hergestellten Produkten signifikant unterscheiden. So enthält Alpkäse viermal mehr Alphalinolensäure (ALA) und dreimal mehr conjugierte Linolsäure (CLA) als etwa englischer Cheddar, mehr Gesamt-omega-3-FS und eine vorteilhaft tiefe n-6:n-3-Ratio. Sogar Käse von Kühen, die mit Leinsamen zugefüttert werden, enthält weniger ALA und CLA. Die Alpviehhaltung und die Produktion von Alpmilchprodukten birgt ein gesundheitlich interessantes und möglicherweise auch wirtschaftlich wertvolles Potential.

Fish oil plus wheat germ oil have no prominent effect on homocysteine levels and nutritional indices in hemodialysis patients

2019 ◽  
pp. 1-7
Author(s):  
Hadeer Zakaria ◽  
Tarek M. Mostafa ◽  
Gamal A. El-Azab ◽  
Nagy AH Sayed-Ahmed
Keyword(s):  
Fatty Acids ◽  
Vitamin E ◽  
Fish Oil ◽  
Wheat Germ ◽  
Hemodialysis Patients ◽  
Nutritional Indices ◽  
Omega 3 Fatty Acids ◽  
Omega 3 ◽  
Wheat Germ Oil ◽  
Serum Homocysteine

Abstract. Background: Elevated homocysteine levels and malnutrition are frequently detected in hemodialysis patients and are believed to exacerbate cardiovascular comorbidities. Omega-3 fatty acids have been postulated to lower homocysteine levels by up-regulating metabolic enzymes and improving substrate availability for homocysteine degradation. Additionally, it has been suggested that prevention of folate depletion by vitamin E consumption decreases homocysteine levels. However, data on the effect of omega-3 fatty acids and/or vitamin E on homocysteine levels and nutritional status have been inconclusive. Therefore, this study was planned to examine the effect of combined supplementation of fish oil, as a source of omega-3 fatty acids, with wheat germ oil, as a source of vitamin E, on homocysteine and nutritional indices in hemodialysis patients. Methods: This study was a randomized, double-blind, placebo-controlled trial. Forty-six hemodialysis patients were randomly assigned to two equally-sized groups; a supplemented group who received 3000 mg/day of fish oil [1053 mg omega-3 fatty acids] plus 300 mg/day of wheat germ oil [0.765 mg vitamin E], and a matched placebo group who received placebo capsules for 4 months. Serum homocysteine and different nutritional indices were measured before and after the intervention. Results: Twenty patients in each group completed the study. At the end of the study, there were no significant changes in homocysteine levels and in the nutritional indices neither in the supplemented nor in the placebo-control groups (p > 0.05). Conclusions: Fish oil and wheat germ oil combination did not produce significant effects on serum homocysteine levels and nutritional indices of hemodialysis patients.

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