Enzymatic Modification of Ferulic Acid Content in Arabinoxylans from Maize Distillers Grains: Effect on Gels Rheology

Author(s):  
Jorge A. Márquez-Escalante ◽  
Elizabeth Carvajal-Millan
2020 ◽  
Vol 26 (4) ◽  
pp. 250-255
Author(s):  
Seul Gi Baek ◽  
Sosoo Kim ◽  
Ja Yeong Jang ◽  
Jeomsoon Kim ◽  
Theresa Lee

Agronomy ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 53 ◽  
Author(s):  
Anna Gagliardi ◽  
Marcella Michela Giuliani ◽  
Federica Carucci ◽  
Matteo Francavilla ◽  
Giuseppe Gatta

The present work was carried out to evaluate the effects of irrigation with two different municipal wastewaters (secondary-treated wastewater (SW) and tertiary-treated wastewater (TW)) compared to freshwater (FW) on main qualitative parameters of three different classes of globe artichoke (main, secondary, and processing heads). The experimental trial was conducted in Southern Italy (Apulia region) for two cropping cycles (GS1 and GS2) using ‘Violetto di Provenza’ as cultivar. The artichoke heads were analyzed for proximate composition (dry matter, total sugar, total fat, ash, and total protein), percentage of edible part, mineral profile (sodium, potassium, magnesium, calcium, copper, iron, nickel, zinc, chloride, nitrate, phosphate, and sulphate) and polyphenolic acids content (caffeoylquinic acids and flavones). Both SW and TW treatments caused an increase of the percentage of the edible part, head protein contents, and mineral elements of the main and processing heads. Moreover, SW statistically increased the caffeoylquinic acid derivatives and the trans-ferulic acid content, while both SW and TW the flavones content. Finally, according to the multivariate analysis adopted, in our experimental conditions, the mineral component of the heads, such as chloride, potassium, copper, and zinc content, had a greater weight in the separation of FW, SW, and TW. On the other hand, the polyphenolic 5-O-caffeoylquinic acid, trans-ferulic acid, and 1,5-di-O-caffeoylquinic acid had a greater weight in the separation of the head class groups (main, secondary, and processing). Moreover, the trans-ferulic acid content of the heads was related both to the irrigation water type and to the different head classes.


2021 ◽  
pp. 45-56
Author(s):  
Déthié Ngom ◽  
Marie-Laure Fauconnier ◽  
Paul Malumba ◽  
Cheikh Thiaw ◽  
Thierry Brévault ◽  
...  

Description of the subject. Maize (Zea mays L.) is a major staple food providing nutrients for humans and animals worldwide. In Sub-Saharan Africa, maize is stored to ensure food resource availability throughout the year. However, stored-product pests such as the maize weevil, Sitophilus zeamais (Motsch.) (Coleoptera; Curculionidae) can cause huge grain losses. Objectives. This study aimed to assess the oviposition preference of Sitophilus zeamais over maize varieties commonly cultivated in Senegal and the effect of grain morphophysical and biochemical characteristics on their susceptibility to the maize weevil. Method. Twenty-five S. zeamais pairs (M/F) were placed in the center of an arena at equal distance of small heaps of maize grains (30 g) from nine maize varieties. Adult abundance, damaged grains, grain weight loss, and progeny were confronted to grain characteristics (phenolics and ferulic acid content, hardness, brightness, color and size of grains). Results. Susceptibility to the maize weevil varied significantly among maize varieties. Synth-9243 was the most susceptible variety with greatest damaged grains (10.5 ± 2.3%), grain weight loss (2.3 ± 0.6%), and progeny (17.3 ± 3.8 adults). The least susceptible varieties were Across-Pool, SWAN, Obatampa, and Tzee-Yellow. Grain characteristics such as phenolics and ferulic acid content were negatively related to susceptibility, but other constituents may have antixenosis or antibiosis effects. In addition, grain brightness may also have a visual effect deterring oviposition. Conclusions. The most repellent and less favorable varieties for S. zeamais were Tzee-Yellow, Across-Pool, Obatampa and SWAN, that presented high content of phenolics and ferulic acid, hardness and brightness of grains.


2017 ◽  
Vol 10 (6) ◽  
pp. 1-5
Author(s):  
N. Zainol ◽  
N. Masngut ◽  
S. N. Ismail ◽  
◽  
◽  
...  

2010 ◽  
Vol 56 (6) ◽  
pp. 266-269 ◽  
Author(s):  
Sylvie BĚLÁKOVÁ ◽  
Karolína BENEŠOVÁ ◽  
Renata MIKULÍKOVÁ ◽  
Zdeněk SVOBODA
Keyword(s):  

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