Desde Cundinamarca. Harina de grillo: gastronomía y sostenibilidad para Colombia y el mundo

2021 ◽  
Author(s):  
Annamaria Filomena Ambrosio ◽  
Luz Indira Sotelo Díaz ◽  
María Paula Deaza Fernández ◽  
Bibiana Ramírez Pulido
Keyword(s):  

La incorporación de harina de grillo, como ingrediente en la cocina, trae diversos beneficios nutricionales y ambientales. Este ingrediente innovador se valora especialmente por su notorio contenido de proteínas y aminoácidos esenciales; además, su producción tiene un impacto ambiental mínimo, por lo que se considera una fuente proteica sostenible. Los desafíos ambientales que se viven en la actualidad y las proyecciones de crecimiento de la población plantean diversas problemáticas y, a su vez, impulsan la creación de estrategias innovadoras y disruptivas orientadas a mitigar las consecuencias negativas de un sistema de producción de alimentos no sostenible. Por tales razones, en este libro se plantea la utilización de la harina de grillo en la cocina de Cundinamarca, un departamento de Colombia, ubicado en el centro del país, en la región andina, que se caracteriza por su biodiversidad y condiciones ambientales que favorecen la actividad agrícola. En efecto, en las regiones con climas cálidos de este departamento se encuentra la especie de grillo Gryllodes sigillatus (Walker) con base en la cual en la actualidad se está produciendo harina para uso alimentario, un ingrediente versátil que puede ser incluido en diversas preparaciones gastronómicas. El presente libro cuenta con un amplio recetario en el que el lector descubrirá cómo la harina de grillo puede aportar al desarrollo de una alimentación saludable y sostenible.

2021 ◽  
Vol 12 ◽  
Author(s):  
Kristin R. Duffield ◽  
John Hunt ◽  
Ben M. Sadd ◽  
Scott K. Sakaluk ◽  
Brenda Oppert ◽  
...  

Interest in developing food, feed, and other useful products from farmed insects has gained remarkable momentum in the past decade. Crickets are an especially popular group of farmed insects due to their nutritional quality, ease of rearing, and utility. However, production of crickets as an emerging commodity has been severely impacted by entomopathogenic infections, about which we know little. Here, we identified and characterized an unknown entomopathogen causing mass mortality in a lab-reared population of Gryllodes sigillatus crickets, a species used as an alternative to the popular Acheta domesticus due to its claimed tolerance to prevalent entomopathogenic viruses. Microdissection of sick and healthy crickets coupled with metagenomics-based identification and real-time qPCR viral quantification indicated high levels of cricket iridovirus (CrIV) in a symptomatic population, and evidence of covert CrIV infections in a healthy population. Our study also identified covert infections of Acheta domesticus densovirus (AdDNV) in both populations of G. sigillatus. These results add to the foundational research needed to better understand the pathology of mass-reared insects and ultimately develop the prevention, mitigation, and intervention strategies needed for economical production of insects as a commodity.


Behaviour ◽  
2004 ◽  
Vol 141 (2) ◽  
pp. 219-232 ◽  
Author(s):  
Samantha Mallard ◽  
C.J. Barnard

AbstractWhile associations between sexual selection, developmental stress and fluctuating asymmetry (FA) remain controversial, this does not necessarily undermine the more general hypothesis that FA reflects developmental instability and functional competence. This applies as much to reproductive processes as to any other. If this is the case, however, we should expect FA and measures of performance to covary under conditions of developmental stress. Using an established association between morphometric FA and reproductive performance in the gryllid crickets Gryllus bimaculatus and Gryllodes sigillatus, we looked at the effect of food stress on covariation between FA and measures of performance (vigour of locomotion and interaction, mating speed, sperm transfer, egg production and offspring weight). The results showed a clear effect of food treatment in males and females of both species, with composite measures reflecting greater FA and reduced performance being greatest when crickets were reared on impoverished food. Inspection of independent means suggested FA may have been most influenced by a relaxation of food stress under high quality feeding conditions, while reproductive performance was more susceptible to the reduction in food quality under low quality conditions.


2010 ◽  
Vol 23 (4) ◽  
pp. 829-839 ◽  
Author(s):  
S. N. GERSHMAN ◽  
C. A. BARNETT ◽  
A. M. PETTINGER ◽  
C. B. WEDDLE ◽  
J. HUNT ◽  
...  

2020 ◽  
Vol 246 (12) ◽  
pp. 2373-2381
Author(s):  
Enrico Daniso ◽  
Francesca Tulli ◽  
Gloriana Cardinaletti ◽  
Roberto Cerri ◽  
Emilio Tibaldi

AbstractThe production of insects on an industrial scale has attracted the attention of the research and agricultural industry as novel protein sources. To detect the presence of Gryllodes sigillatus (GS) in feed and food, a real-time PCR method based on the mitochondrial cytochrome b (CYB) gene is proposed by this study. Forty DNA samples of animal and plant origin were used to confirm the specificity of the qPCR system. The detection method’s performance was evaluated on different processed GS matrices including native GS (UnGS) and different commercial products: crunchy roasted samples (RoGS), insect meal mixtures (ACGS) and energetic snacks containing GS (GSS). Data on sequencing were aligned with the reference gene to confirm the PCR products. The regression curve (y = −3.394 x + 42.521; R2 = 0.994, d.f. 14) between Ct values and Log DNA concentrations of Gryllodes sigillatus resulted in an efficiency of 96.4%. The severity of the technological processing treatments and the matrix structure affected the intensity of the PCR signal with the same amount of insect DNA as observed by different y-intercepts of the three-regression lines for RoGS, ACGS, and GSS. The real-time PCR method resulted in robust and sensitive outcomes able to detect low amounts of GS DNA (5 g/100 g) in a complex matrix, making it suitable for detecting the presence or absence of labeled Gryllodes sigillatus material both in feed and food.


2009 ◽  
Vol 55 (12) ◽  
pp. 1125-1133 ◽  
Author(s):  
Fernanda P. Biagio ◽  
Fabio K. Tamaki ◽  
Walter R. Terra ◽  
Alberto F. Ribeiro
Keyword(s):  

Zootaxa ◽  
2011 ◽  
Vol 3126 (1) ◽  
pp. 55
Author(s):  
OSCAR J. CADENA-CASTAÑEDA

Faguagryllus luteolus n. gen. et n. sp., from the Colombian Atlantic coast is described and illustrated. The relation with the genera Miogryllus Saussure, 1877 and Kazuemba Mello, 1990 is discussed; as well as their inclusion in Modicogryllini. Gryllodes sigillatus is reported for Colombia, with distribution data of the examined specimens, and the allocation of figures of Gryllodes species in Otte 2006 is corrected.


1968 ◽  
Vol 46 (1) ◽  
pp. 57-60 ◽  
Author(s):  
S. B. Mathad ◽  
J. E. McFarlane

Larvae and adults of Gryllodes sigillatus (Walk.) were exposed to various photoperiods (10 h–18 h) to determine the influence of photoperiod on wing development. In the larva, a 14-h photoperiod was optimal for wing development and a 10-h photoperiod suppressed wing development completely. Adults exposed to a 14-h photoperiod produced more winged progeny than adults exposed to an 18-h photoperiod. Photoperiod therefore produces its effect on wing development both directly on the larvae and indirectly through their parents.


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