Chemical composition, digestibility and protein quality of 12 sunflower (Helianthus annuus L) cultivars

Canibe, Nuria; Pedrosa, Mercedes M.; Robredo, L. M.; Knudsen, Knud Erik Bach

doi:10.1002/(sici)1097-0010(199910)79:13<1775::aid-jsfa435>3.0.co;2-1

Cited by 37 publications

(31 citation statements)

References 31 publications

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“…Lipids and proteins are the main components of the seed. The pericarp that represents 23-32 wt.% of the whole achene [15], consists mainly of lignin, pentosans and cellulosic material [18].…”

Section: Samplesmentioning

confidence: 99%

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A laboratory simulation of the carbonization of sunflower achenes and seeds

Braadbaart

Wright

Horst

et al. 2007

Journal of Analytical and Applied Pyrolysis

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The current project describes physical and chemical alterations that result from the thermal exposure of sunflower achenes and seeds. Specifically, achenes and seeds were heated at temperatures ranging from 130 to 600 8C under anoxic conditions for 60 min. Changes were measured in mass, relative percentages of C and N, internal and external morphology, molecular composition by direct temperature-resolved mass spectrometry (DTMS) under EI conditions, and the reflectance on polished specimens. The main constituents of sunflower seeds are lipids and protein, while the pericarps or hulls enclosing the seeds have a ligno-cellulosic structure. The morphology of achenes and seeds remains intact following exposure which makes the identification of the residues possible. The results of the sunflower experiments were compared to previous experiments conducted with peas and wheat grains. Up to approximately 340 8C, the molecular conversion of polysaccharide and protein rich peas and wheat grains follow similar pathways, while the lignin present in sunflower achenes follows its own unique pathway, resulting in a different molecular composition. At higher temperatures the molecular composition of the three propagules becomes identical. In addition the reflectance of the three propagules is identical confirming the similarity in molecular composition. Lipids show a different behaviour compared to the other three biopolymers; from 370 8C no oils are observed in the heated specimens and the DTMS-EI measurements show no lipid markers. Apart from evaporation of the triacylglycerides it is suggested that steroids have a high resistance against thermal degradation and are converted into aromatic moieties. #

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Section: Samplesmentioning

confidence: 99%

“…Visible are m/z 69 (Val, Leu, Lys, Gln); 70, 154, 194 (Pro, Arg, Lys); 84 (Glu, Val, Lys); 91 (Phe); 94, 107, 108, 136 (Tyr); 110 (His); 117 (Trp); 138 (Leu, Hpro); 152, 166, 180 (Leu) and 186 (Tyr) [7,8]. These amino acids are also present in the proteins of sunflower seeds [15].…”

Section: Seedsmentioning

confidence: 99%

A laboratory simulation of the carbonization of sunflower achenes and seeds

Braadbaart

Wright

Horst

et al. 2007

Journal of Analytical and Applied Pyrolysis

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“…The energy content of SFM compares favorably with that of other oilseed meals and increases as the residual oil content increases and as the fiber content decreases. Moreover, compared to soybean or rapeseed meal, SFM contains low antinutritional compounds and it is more resistant to contaminants (Canibe et al, 1999;Bozzo et al, 2008). Despite its dark appearance, lower energy, and the higher fiber content, as compared to SBM, the SFM is a competitive product with potential for continued improvement through the use of tail-end screening to further reduce its fiber content.…”

Section: Introductionmentioning

confidence: 99%

Feeding of Low-Fibre Sunflower (<i>Helianthus annus </i>L.) Meal as Substitute of Soybean Meal in Turkey Rations: Effects on Growth Performance and Meat Quality

et al. 2014

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Soybean meal (SBM) is the most widely and expensive protein source used in the formulation of poultry diets; however, when the price of SBM increases, poultry nutritionists seek alternative sources that are more economical in formulating least-cost rations. This research aimed to evaluate the effects of air classified sunflower meal (SFM) in diets of turkeys on their growth performance, carcass yields and meat quality. A total of 140 1-d-old female turkeys (Nicholas 500) were randomly assigned to two dietary treatments which were fed from hatch to 16 wk. The birds were fed two wheat middlings-based diets comprising of a control diet which contained SBM (145 g/kg) and a test diet containing micronized-air classified SFM (172 g/kg) as the main protein source. The substitution of SBM with sunflower had no adverse effect on growth performance and dressing percentage, improving breast and thigh muscles relative weights of the turkeys. A significant effect was found for feed intake (P＜0.05) which was lower in birds fed diet containing sunflower compared to those fed soybean, without however any negative effects on feed efficiency (P＜0.05). Meat from turkeys fed the sunflower diet had less cholesterol (P＜0.01) and higher concentrations of phospholipids (P＜0.01). Our results suggest that replacing the conventional SBM as protein source, with micronized-air classified SFM in diets of turkeys can improve carcass quality and favourable lipid profile without adverse effects on growth traits, reducing also the production costs.

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“…Esse resultado se encontra na ampla faixa de variação do teor de ACG no farelo de girassol, que oscila entre 0,06% até 2,5% (CANIBE et al, 1999;GONZALEZ-PEREZ et al, 2002 Analisando separadamente os solventes, para etanol, a interação tempo X temperatura foi significativa (Tabela 3), o que implicou efeitos significativos de tempo de contato e de temperatura de extração. À medida que a temperatura e o tempo aumentaram, o rendimento de extração de ACG com etanol aumentou significativamente (Tabela 4).…”

Section: Resultsunclassified