Chemical composition, organic matter digestibility and fatty acid content of linseed (Linum usitatissimum L.) harvested at five stages of growth

2008 ◽  
Vol 88 (10) ◽  
pp. 1850-1854 ◽  
Author(s):  
Pier Giorgio Peiretti ◽  
Giorgia Meineri
Keyword(s):  
Organic Matter ◽  
Fatty Acid ◽  
Chemical Composition ◽  
Linum Usitatissimum ◽  
Acid Content ◽  
Fatty Acid Content ◽  
Stages Of Growth ◽  
Linum Usitatissimum L ◽  
Organic Matter Digestibility

scholarly journals Sludge char-to-fuel approaches based on the hydrothermal fueling IV: fermentation

2021 ◽  
Author(s):  
Jinyi Qin ◽  
Rui Zhang ◽  
Ruiwen Yang ◽  
Jiao Fang ◽  
Yu Zhang ◽  
...  
Keyword(s):  
Amino Acids ◽  
Fatty Acids ◽  
Organic Matter ◽  
Fatty Acid ◽  
Sewage Sludge ◽  
Acid Content ◽  
Saturated Fatty Acids ◽  
Fatty Acid Content ◽  
Heating Value ◽  
Cyclic Amino Acids

Abstract Sewage sludge was subjected to hydrothermal fueling (HTF) (330 °C for 40 min), obtaining hydrochar at 13.5 MJ kg−1. The higher heating value (HHV) of the raw sludge was related to its fatty acid content. The results showed that although the higher heating value (HHV) of the raw sludge was related to its fatty acid content, with the intensification of HTF, the increase in aliphatic/cyclic amino acids determined the production of HHV in the hydrochar. In order to increase the content of fatty acids and amino acids, the sludge was fermented. However, the Bacteroidetes consumed the organic matter too early, which was detrimental to the production of HHV. Therefore, appropriate sludge fermentation is recommended to restrict excessive Bacteroidetes proliferation, decompose lipids to saturated fatty acids, and convert proteins to aliphatic/cyclic amino acids to increase the efficiency of converting sludge to fuel.

scholarly journals Deficit Irrigation as a Suitable Strategy to Enhance the Nutritional Composition of HydroSOS Almonds

Water ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3336
Author(s):  
Saray Gutiérrez-Gordillo ◽  
Leontina Lipan ◽  
Víctor Hugo Durán Zuazo ◽  
Esther Sendra ◽  
Francisca Hernández ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Fatty Acid ◽  
Chemical Composition ◽  
Acid Content ◽  
Deficit Irrigation ◽  
Fatty Acid Content ◽  
Quality Parameters ◽  
Nutritional Composition ◽  
Control Treatment ◽  
Irrigated Agriculture

The Mediterranean region is one of the most water-scarce areas worldwide and is considered a climate-change hotspot. To assure the viability and competitiveness of irrigated agriculture, it is vital to implement strategies that can maximize water saving without compromising yield. Deficit irrigation (DI) for cultivating drought-tolerant species such as almond (Prunus dulcis (Mill.) D.A. Webb) can help in achieving this goal, while at the same time improving fruit chemical composition. This work evaluated the effect of DI techniques and cultivars on the chemical composition of almonds (cvs. Marta, Guara, and Lauranne) in order to elucidate the most suitable irrigation dose under water-scarcity scenarios. Three irrigation regimes were imposed: a control treatment (FI), which was fully irrigated, receiving 100% of the irrigation requirement (IR), and two sustained-deficit irrigation (SDI) strategies that received 75% (SDI75) and 65% (SDI65) of IR. Significant differences among cultivars and irrigation treatments were observed for antioxidant activity and organic acid, sugar, and fatty acid content, which were increased by the SDI strategies. In addition, highly significant correlations were found between leaf-water potential and components such as fumaric acid, sugars, and fatty acids. In terms of the cultivars, cv. Marta showed the highest antioxidant activity, cv. Guara was the richest in organic acids, and cv. Lauranne had the highest fatty acid content. Consequently, SDI strategies improved almond quality parameters related to their nutritional and sensory composition, with significant water savings (reductions of 25–35%) and without important yield loss.

scholarly journals Effects of Biogas Slurry on Fruit Economic Traits and Soil Nutrients of Camellia oleifera Abel

2018 ◽  
Author(s):  
Lu You ◽  
Shuqin Yu ◽  
Huiyun Liu ◽  
Chutian Wang ◽  
Zengliang Zhou ◽  
...  
Keyword(s):  
Organic Matter ◽  
Fatty Acid ◽  
Soil Nutrients ◽  
Acid Content ◽  
Rhizosphere Soil ◽  
Fatty Acid Content ◽  
Application Rate ◽  
Camellia Oleifera ◽  
Biogas Slurry ◽  
Economic Traits

AbstractSoil nutrients play a principal role in Camellia oleifera Abel (oil-seed camellia) production. Camellia oleifera absorbs nutrients from surrounding soils and its production is highly influenced by nutrients or fertilization. In this study, we investigated the effects of biogas slurry applications on soil nutrients and economic traits of C. oleifera fruits. Five different amounts of fertilizing biogas slurry (0, 10, 20, 30, or 40 kg/plant/year from three applications per year) were applied to C. oleifera plants in 2015 and 2016. Rhizosphere soil nutrients and C. oleifera fruit economic traits (yield, seed rate, and oil yield)were measured. Fertilization with biogas slurryincreasedsoil organic matter, available nitrogen (N), phosphorus (P), and potassium (K) in both 2015 and 2016. Increases in soil available N, P, and Kwere largest at the highest slurry application rate and second largest at the second highest application rate. Fruit economic traits were maximized at the two highest application rates. Oil yield was correlated withsoil available P in 2015 and 2016, and soil organic matter in 2015. Fertilization with biogas slurry decreased saturated fatty acid content in fruit but had no effect on unsaturated fatty acid content. In conclusion, fertilization with biogas slurry increases rhizosphere soil nutrients and fruit economic traits of C. oleifera with the rates of at least 30 kg/plant/year having the most positive effects.

scholarly journals Effect of day length and exogenous melatonin on chemical composition of sheep milk

2011 ◽  
Vol 54 (2) ◽  
pp. 177-187 ◽  
Author(s):  
E. Molik ◽  
G. Bonczar ◽  
A. Żebrowska ◽  
T. Misztal ◽  
H. Pustkowiak ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Chemical Composition ◽  
Acid Content ◽  
Fatty Acid Content ◽  
Prolactin Secretion ◽  
Day Length ◽  
Farm Animals ◽  
Exogenous Melatonin ◽  
Sheep Milk ◽  
Group I

Abstract. Changes in day length are a major factor in the productivity of farm animals showing reproductive seasonality. Parameters of milk production in sheep and goats are dependent on melatonin and prolactin concentrations. Changes in the prolactin secretion in lactating sheep have an effect on the amount of milk produced, synthesis of milk proteins, fat and immunoglobulins (i.e. milk composition). In the end the quality and commercial value of milk is determined as well. The aim of this study was therefore to find out the effect of day length and exogenous melatonin on the chemical composition of milk and the level of fatty acids. Subjects were 60 Polish Longwool Sheep. Animals were randomly assigned to three groups, Group I (n=20) – ewes raised under natural day length; Group II (n=20) ewes raised under natural day length and were implanted with melatonin; Group III (n=20) – ewes exposed to an artificially short photoperiod (16D:8L). Sheep were milked twice daily using the Alfa Laval Agri milking machine. Composite milk samples were collected every 28 days to determine chemical composition and fatty acid content. The results obtained showed that the administration of exogenous melatonin and the simulation of a short-day photoperiod during the summer period had significant effects on the milk levels of solids, protein, fat and lactose, and on the fatty acid content of sheep milk.

scholarly journals Chemical composition and fatty acid content in lamb and adult sheep meat

2020 ◽  
Vol 63 (2) ◽  
pp. 261-268
Author(s):  
Andrzej Junkuszew ◽  
Paulina Nazar ◽  
Michał Milerski ◽  
Milan Margetin ◽  
Piotr Brodzki ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Chemical Composition ◽  
Acid Content ◽  
Consumer Preferences ◽  
Fatty Acid Content ◽  
Biceps Femoris ◽  
Dietary Fatty Acids ◽  
Meat Production ◽  
Adult Sheep ◽  
Meat Samples

Abstract. The aim of the present study was to compare the chemical composition and fatty acid (FA) content of the muscle tissues of lambs and adult sheep bred for meat production. Throughout the research period, the animals were managed in a confinement indoor system under uniform environmental conditions. After slaughter, meat samples collected from the musculus biceps femoris were used to determine the basic chemical composition and fatty acid content in the intramuscular fat. The analyses showed that, compared to lambs, meat from adult animals exhibited a more beneficial ratio of n-6 to n-3 FAs, as well as a favorable percentage of OFAs (dietary fatty acids having an undesirable hypercholesterolemic effect on humans). The results of this study support the inclusion of dietitian-recommended mutton into the human diet and the promotion of the production of meat from adult animals as a high-value product. The sheep industry could benefit economically, particularly in countries where this meat type has not enjoyed a high standing in consumer preferences.

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