scholarly journals Degradation of reserves of crambe seed (Crambe abyssinica) during germination

2016 ◽  
Vol 11 (11) ◽  
pp. 920-924 ◽  
Author(s):  
Fid ecirc ncio de Oliveira Elisa ◽  
Minarelli Reche Aline ◽  
Antonio Penariol da Silva Magnun ◽  
Cristina Esteves Amaro Amanda ◽  
Antonio Martin Biagionni Marco ◽  
...  
Keyword(s):  
Crambe Abyssinica ◽  
Crambe Seed

Effect of organic reducing agents and ferrous ion on thioglucosidase activity of Crambe abyssinica seed

1970 ◽  
Vol 48 (9) ◽  
pp. 1024-1028 ◽  
Author(s):  
H. L. Tookey ◽  
I. A. Wolff
Keyword(s):  
Reducing Agents ◽  
Ferrous Ion ◽  
Seed Meal ◽  
Crambe Abyssinica ◽  
Meal Pattern ◽  
Crambe Seed ◽  
Crambe Meal ◽  
Insoluble Particles

The addition of L-ascorbate or 2-mercaptoethanol to aged crambe seed meal tends to restore the fresh meal pattern of epi-progoitrin hydrolysis to nitriles instead of (R)-goitrin. Neither of these reducing agents has an effect on the breakdown of epi-progoitrin to goitrin by an insoluble particulate thioglucosidase from crambe meal. The addition of ferrous ion to the insoluble particles results in the conversion of epi-progoitrin to (2S)-1-cyano-2-hydroxy-3-butene instead of (R)-goitrin over a range from pH 3.9 to 6.7.

scholarly journals THE FEEDING VALUE OF SOLVENT-EXTRACTED CAMELINA MEAL EFFECTS OF LEVELS FED, HEAT TREATMENTS AND FLAVOR SUPPLEMENTS

1967 ◽  
Vol 47 (2) ◽  
pp. 109-114 ◽  
Author(s):  
G. O. Korsrud ◽  
J. M. Bell
Keyword(s):  
Control Diet ◽  
Maximum Growth ◽  
Brassica Napus L ◽  
Growth Depression ◽  
Crambe Abyssinica ◽  
Crambe Seed ◽  
Camelina Meal ◽  
Feeding Value ◽  
Dry Heating ◽  
Camelina Seed

Camelina seed was ground, solvent-extracted, and fed at levels of 0, 5, 10, 15, 20 and 25% of the diet to weanling mice. Licorice (0 and 0.025%) was tested as a cross-treatment to modify flavor. Levels up to 10% resulted in no adverse effects on growth of mice but each increase in level beyond 10% resulted m a significant (P <.05) reduction in gains and feed intakes. Licorice was ineffective.In a second experiment 20 to 22% of camelina meal was fed m all diets. Raw meal was compared with dry-heated meal (12 hours, 135 °C), autoclaved meal (15 min, 1.2 kg/cm2), steam-stripped (2 hours, 110 °C) and a casein–methionine–supplemented control diet. In each case, four myrosinase-source supplements were added: nil, crambe seed, rapeseed, and camelina seed (Crambe abyssinica Hochst., Brassica napus L., and Cameline sativa Crantz).Destruction of myrosinase by any method of heating resulted in significantly better feeding value of camelina meal, but steam stripping was superior to dry heating or autoclaving.It was concluded that camelina meal is probably superior to rapeseed and crambe meals, in that more than 10% of raw meal is tolerated in the diet before growth depression occurs. Near maximum growth was obtained with myrosinase-free diets containing about 20% meal. Growth depression that occurred at the higher levels of intake exceeded that which could be accounted for by the content of volatile isothiocyanates.

Solubilization and Selected Properties of Crambe Seed Thioglucosidase (Thioglucoside Glucohydrolase, EC 3.2.3.1)

1973 ◽  
Vol 51 (9) ◽  
pp. 1305-1310 ◽  
Author(s):  
H. L. Tookey
Keyword(s):  
Substrate Inhibition ◽  
Apparent Molecular Weight ◽  
Ferrous Ion ◽  
Soluble Enzyme ◽  
Ammonium Sulfate Precipitation ◽  
Michaelis Constant ◽  
Sequential Fractionation ◽  
Crambe Abyssinica ◽  
Crambe Seed ◽  
Insoluble Particles

Ultrasonic treatment releases thioglucoside glucohydrolase (thioglucosidase) from insoluble particles of Crambe abyssinica seed meal. The crude enzyme is optimally activated by 10−2 M ascorbate, requires a reducing agent for stability, and is inhibited by 10−3 M p-chloromercuribenzenesulfonate.Chromatography of a meal extract on cross-linked dextran separates two enzyme fractions. About 80% of the activity elutes at an apparent molecular weight of 110 000; the remainder elutes at the void volume. Both crude soluble enzyme and the fractions from the dextran column produce goitrin from epi-progoitrin, but in the presence of ferrous ion the chief aglucon product becomes 1-cyano-2-hydroxy-3-butene. The Michaelis constant (of the major peak) at pH 5 is 0.004 M. Ferrous ion produces substrate inhibition at high epi-progoitrin levels. Sequential fractionation of meal extract by ammonium sulfate precipitation and by chromatography on cross-linked dextran effects an 80-fold purification.

LIGHT INFLUENCE ON SEED GERMINATION OF CRAMBE (Crambe abyssinica Hochst.)

Nucleus ◽  
2011 ◽  
Vol 8 (1) ◽  
pp. 405-412 ◽  
Author(s):  
Lima Deleon Martins ◽  
Felipe Pianna Costa ◽  
José Carlos Lopes
Keyword(s):  
Seed Germination ◽  
Crambe Abyssinica

Deep learning-based approach using X-ray images for classifying Crambe abyssinica seed quality

2021 ◽  
Vol 164 ◽  
pp. 113378 ◽  
Author(s):  
André Dantas de Medeiros ◽  
Rodrigo Cupertino Bernardes ◽  
Laércio Junio da Silva ◽  
Bruno Antônio Lemos de Freitas ◽  
Denise Cunha Fernandes dos Santos Dias ◽  
...  
Keyword(s):  
Deep Learning ◽  
Seed Quality ◽  
Crambe Abyssinica ◽  
X Ray

scholarly journals Physiological responses to intense water deficit in two genotypes of crambe (Crambe abyssinica Hochst.)

2017 ◽  
pp. 821-827 ◽  
Author(s):  
Rodrigo Fantin Alves Martins ◽  
◽  
André Felipe Costa Souza ◽  
Carlos Pitol ◽  
Antelmo Ralph Falqueto ◽  
...  
Keyword(s):  
Water Deficit ◽  
Physiological Responses ◽  
Crambe Abyssinica

scholarly journals Film Extrusion of Crambe abyssinica/Wheat Gluten Blends

10.3791/54770 ◽  
2017 ◽  
Author(s):  
Mikael Gällstedt ◽  
Henrik Pettersson ◽  
Therese Johansson ◽  
William R. Newson ◽  
Eva Johansson ◽  
...  
Keyword(s):  
Wheat Gluten ◽  
Crambe Abyssinica ◽  
Film Extrusion

scholarly journals Spectroscopic Methods in the Evaluation of Modified Vegetable Base Oils from Crambe abyssinica

Molecules ◽  
2018 ◽  
Vol 23 (12) ◽  
pp. 3243 ◽  
Author(s):  
Michał Szmatoła ◽  
Justyna Chrobak ◽  
Rafał Grabowski ◽  
Jolanta Iłowska ◽  
Julia Woch ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Vegetable Oil ◽  
Supercritical Co2 ◽  
Spectroscopic Methods ◽  
Spectroscopic Techniques ◽  
Chemical Transformations ◽  
Chemical Changes ◽  
Crambe Abyssinica ◽  
Oxidation Processes ◽  
Ft Ir

Raw vegetable oil from Crambe abyssinica was subjected to oxidative treatment to enhance its viscosity. The oxidation processes were carried out in the presence of N-hydroxyphthalimide with or without supercritical CO2 as a solvent. Four spectroscopic techniques (Raman, UV-VIS, FT-IR, NMR) were applied to assess the chemical changes taking place during the oxidation. Raman and NMR spectroscopy proved best in the assessment of the chemical transformations leading to increased viscosity of the modified vegetable oil.

scholarly journals Eco-friendly, renewable Crambe abyssinica Hochst-based adsorbents remove high quantities of Zn2+ in water

2020 ◽  
Vol 18 (2) ◽  
pp. 809-823
Author(s):  
Daniel Schwantes ◽  
Affonso Celso Gonçalves ◽  
Andreia da Paz Schiller ◽  
Jéssica Manfrin ◽  
Luiz Alberto Verderio Bianco ◽  
...  
Keyword(s):  
Crambe Abyssinica
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