scholarly journals Lipoxygenase Inhibition by Plant Extracts

Biomolecules ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 152
Author(s):  
Melita Lončarić ◽  
Ivica Strelec ◽  
Tihomir Moslavac ◽  
Drago Šubarić ◽  
Valentina Pavić ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Unsaturated Fatty Acids ◽  
Inflammatory Reactions ◽  
Long Term Storage ◽  
Food Properties ◽  
Lipoxygenase Inhibition ◽  
Plant Families ◽  
Term Storage ◽  
Stimulation Of

Lipoxygenases are widespread enzymes that catalyze oxidation of polyunsaturated fatty acids (linoleic, linolenic, and arachidonic acid) to produce hydroperoxides. Lipoxygenase reactions can be desirable, but also lipoxygenases can react in undesirable ways. Most of the products of lipoxygenase reactions are aromatic compounds that can affect food properties, especially during long-term storage. Lipoxygenase action on unsaturated fatty acids could result in off-flavor/off-odor development, causing food spoilage. In addition, lipoxygenases are present in the human body and play an important role in stimulation of inflammatory reactions. Inflammation is linked to many diseases, such as cancer, stroke, and cardiovascular and neurodegenerative diseases. This review summarized recent research on plant families and species that can inhibit lipoxygenase activity.

scholarly journals Quantification of fatty acids in salmon fillets conserved by different methods

2017 ◽  
Vol 39 (4) ◽  
pp. 403 ◽  
Author(s):  
Renata Menoci Gonçalves ◽  
Paula Fernandes Montanher ◽  
Fabiana Carbonera ◽  
Maria Eugênia Petenuci ◽  
Roberta Da Silveira ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Saturated Fatty Acids ◽  
Monounsaturated Fatty Acids ◽  
Total Lipids ◽  
Omega 3 ◽  
Long Term Storage ◽  
Lipid Contents ◽  
High Lipid ◽  
Term Storage

 Lipid contents and the composition of fatty acids of fillets from Chilean salmon (Salmo salar) were determined under different conservation methods: fresh salmon, frozen salmon, water-conserved canned salmon and frozen salmon in long-term storage. Fatty acid contents were determined by gas chromatography. The fillets had high lipid levels, ranging between 9.71 and 12.86%. All samples presented high levels of monounsaturated fatty acids, between 363.69 and 425.30 mg g-1 of total lipids, followed by polyunsaturated fatty acids (294.46 - 342.45 mg g-1 of total lipids) and saturated fatty acids (203.32 - 223.17 mg g-1 of total lipids). Although samples revealed different lipid contents, all proved to be great sources of omega-3 fatty acids, regardless of the manner of conservation. 

scholarly journals Long-Term Storage of Fish Oil Fatty Acids in the Liver, Not Adipose Tissue, in Humans.

1992 ◽  
Vol 12 (1) ◽  
pp. 51-57
Author(s):  
Yoshisuke MARUHAMA ◽  
Yoshihito KANEKO ◽  
Kohsaku SEKINE ◽  
Tuguhisa KURODA ◽  
Hideaki MUKAIDA ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Adipose Tissue ◽  
Fish Oil ◽  
Long Term Storage ◽  
Term Storage

scholarly journals Valuable agronomic traits of chufa (Cyperus esculentus L.) accessions from the VIR collection: methods of preparing nodules for long-term storage

2021 ◽  
Vol 182 (2) ◽  
pp. 34-44
Author(s):  
N. G. Kon’kova ◽  
G. F. Safina
Keyword(s):  
Fatty Acids ◽  
Vitamin E ◽  
Oil Content ◽  
Saturated Fatty Acids ◽  
Food Additives ◽  
Germination Percentage ◽  
Optimal Time ◽  
Long Term Storage ◽  
Term Storage

Background. Chufa is one of the most promising rare oilseed crops. The issues of preserving and obtaining highquality seed material are very important. The development of long-term genebank storage techniques for chufa nodules is a pressing task.Materials and methods. We studied 18 chufa germplasm accessions of various origin. The field study was conducted in 2010–2012 under the environmental conditions of Krasnodar Territory, Russia. Protein and oil content was analyzed according to the guidelines on the methods of quality control and safety of bioactive food additives (R 4.1.1672-03…, 2004); vitamin E according to the guidelines on the methods of analyzing the quality and safety of food products (Skurikhin, Tutelyan, 1987); fatty acid composition in line with IUPAC (1979) and GOST R 512677-2006, using an IIRGCS chromatograph.Results and conclusions. The study of valuable agronomic characters in chufa accessions showed that the height of plants varied from 49 to 69 cm; the number of nodules per plant from 80 to 110 pcs; the weight of nodules per plant from 18 to 49 g; the weight of nodules per plot (1 m2 ) from 101 to 393 g. Their oil content varied from 13.1 to 21.06 g/100 g, and protein content from 6 to 10%. Chufa accessions contained large amount of vitamin E: 19.23 to 35.23 mg/100 g. The content of saturated fatty acids in chufa oil was 17.75 to 20.99%, monounsaturated fatty acids from 68.21 to 71.55%, and polyunsaturated fatty acids from 9.94 to 12.17%. A technique of preparing chufa nodules for long-term storage was developed. The optimal time to assess germination energy is four days, with 11 days for germination percentage. Storage of chufa nodules for three years at a temperature of +20°C causes a decrease in their germination by 15–16%. When stored under low positive (+4°C) or negative temperatures (–18°C and –196°C), their germination percentage remained unchanged.

The development of method of hormonal stimulation of N.L.Gerbilsky and appearance of contemporary preparations of long-term storage

2021 ◽  
pp. 63-76
Author(s):  
Igor Vladimirovich Trenkler
Keyword(s):  
Main Role ◽  
Hormonal Stimulation ◽  
Stabilizing Solution ◽  
Long Term Storage ◽  
Effective Doses ◽  
Gonadotropic Activity ◽  
Lh Rh ◽  
Term Storage ◽  
Stimulation Of

The The main discovery of the 20th century in the field of fish breeding is hormonal stimulation of final stages of maturation of fish at hatcheries. The «father» of method of pituitary injections was Leningrad ichthyologist N.L. Gerbilsky. The main achievements of N.L. Gerbilsky and his school are methods of mass extraction of fish pituitaries, their dehydration by acetone for later storage and use, testing of pituitary gonadotropic activity on different objects. The induction of ovulation in female loaches Misgurnus fossilis or spermiation reaction of Galli-Mainini in male frogs Rana ridibunda or R. temporaria were used for pituitary testing. The effective doses of dried pituitaries for sturgeons were determined in milligrams and loach units or frog units. The method of pituitary injections was used for functioning of sturgeon breeding facilities at Volga, Don, Kuban and Kura and other rivers. For guaranteed answer fish breeders used hyperdoses of dry pituitary powder because its gonadotropic activity varied in dependence on stage of maturity of fish-“donors”. The followers of N.L. Gerbilsky led by Prof. I.A. Barannikova developed the technique of production of special glycerol pituitary extract (GPE) with determined gonadotropic activity. The main role in formulation of the recipe of GPE belongs to A.A. Boyev. The use of GPE has removed the problem of hyperdosing leading to worsening quality of mature germinal cells of sturgeons. Later, A.A. Boyev on the basis of this recipe with replacement of glycerol to propylene glycol created stabilizing solution of analogue of mammal LH-RH (“surphagon”) of long-term storage with concentration of active substance from 20 to 500 micrograms/ml.

Modelling of Moisture Movement in Wood during Outdoor Storage

2001 ◽  
Vol 6 (2) ◽  
pp. 3-14 ◽  
Author(s):  
R. Baronas ◽  
F. Ivanauskas ◽  
I. Juodeikienė ◽  
A. Kajalavičius
Keyword(s):  
Experimental Data ◽  
Finite Difference ◽  
Climatic Conditions ◽  
Two Dimensional ◽  
Moisture Movement ◽  
Finite Difference Technique ◽  
Long Term Storage ◽  
Space Formulation ◽  
Term Storage

A model of moisture movement in wood is presented in this paper in a two-dimensional-in-space formulation. The finite-difference technique has been used in order to obtain the solution of the problem. The model was applied to predict the moisture content in sawn boards from pine during long term storage under outdoor climatic conditions. The satisfactory agreement between the numerical solution and experimental data was obtained.

Trehalose: a cryoprotectant that enhances recovery and preserves function of human pancreatic islets after long-term storage

Diabetes ◽  
1997 ◽  
Vol 46 (3) ◽  
pp. 519-523 ◽  
Author(s):  
G. M. Beattie ◽  
J. H. Crowe ◽  
A. D. Lopez ◽  
V. Cirulli ◽  
C. Ricordi ◽  
...  
Keyword(s):  
Pancreatic Islets ◽  
Human Pancreatic Islets ◽  
Long Term Storage ◽  
Term Storage
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