scholarly journals Variability of the total oil content and fatty acid profile of creole avocados from Nuevo Leon, Mexico

2019 ◽  
pp. 705-719
Author(s):  
Efraín Acosta-Díaz ◽  
María Genoveva Álvarez-Ojeda ◽  
Salvador Horacio Guzmán-Maldonado ◽  
Isidro Humberto Almeyda-León

Introduction. The State of Nuevo Leon is considered the depositary of a wide genetic diversity of creole avocados (Persea americana var drimyfolia). Objective. The aim of this work was to determine the variability of the total oil content and the fatty acids profile in creole avocados from Nuevo Leon, Mexico. Materials and methods. During the spring and summer of 2016, 36 varieties of creole avocados were collected in the northern and southern region of the State of Nuevo Leon, Mexico for chemical characterization. The commercial variety “Hass” was included as a control. To determine the variability that exists in the content of total oils and fatty acids in the collected materials, analyzes of the main components and conglomerates were carried out. Results. Six fatty acids were detected in the total oil of the creole avocados: palmitic, stearic, oleic, palmitoleic, linoleic and linolenic. The outstanding varieties were “Platano temprano”, “Platano delgado”, “Huevo de toro”, “Cuerno”, “Pato”, and “Especial”, which presented an average of 17.28, 24.93 and 66.29 % more in the content of oleic, linoleic and linolenic acids respectively, and an average of 28.12 % less stearic acid compared to the commercial variety “Hass”. According to the analysis of main components, materials with high oleic acid content usually have low palmitic and palmitoleic acid contents. The dendrogram presented six groups within the evaluated materials, most of the outstanding materials are located in groups one and four. Conclusion. High variability in the content of total oils and fatty acids was determined in creole avocados from Nuevo Leon. Therefore, they are considered promising for their incorporation into genetic improvement programs.

2018 ◽  
Vol 24 (2) ◽  
pp. 67-76
Author(s):  
Sujadi Sujadi ◽  
Hasrul Abdi Hasibuan ◽  
Meta Rivani ◽  
Abdul Razak Purba

Fresh fruit bunches (FFB) consist of fruit be composed grade in few spikelet. Fruit at a spikelet can be distinguished into performed fruit namely internal fruit, middle fruit and outer fruit as soon as each section contain parthenocarpy fruits. This research was conducted for determine composition and content fatty acid of oil at internal fruit, middle, outer and parthenocarpy fruit from oil palm fruit. Samples of fruit came from 3 – 5 spikelet the central of FFB. Result showed that oil content of outer fruit (46.9 + 9.9)% trend higher be compared middle fruit (42.8 + 10.3)% and internal fruit (39.1 + 9.5)%. Parthenocarpy fruits have a low oil content (14.2 + 16.2)% except yellowish fruit trend high relatively oil content. The main components of fatty acid at outer fruit, middle and internal are palmitic acid, oleic, linoleic and stearic with mean value respectively (44.8 – 45.8)%, (37.6 – 38.0)%, (9.9 – 10.9)% and (4.6 – 4.8)%. Oil content at parthenocarpy fruit have amount main component of fatty acid with performed fruit but composition of palmitic acid (40.0 + 5.9)% and oleic (34.6 + 8.4)% lower while linoleic acid (16.9 + 8.5)% and linolenic (1.6 + 1.8)% higher be compared to performed fruit. Simalungun variety has the highest oil content in the part of fruit, with that PPKS 540 and La Mé respectively. PPKS 540 variety has the highest oleic acid content while PPKS 718 has the highest linoleic content.


2016 ◽  
Vol 24 (2) ◽  
pp. 67-76
Author(s):  
Sujadi Sujadi ◽  
Hasrul Abdi Hasibuan ◽  
Meta Rivani ◽  
Abdul Razak Purba

Fresh fruit bunches (FFB) consist of fruit be composed grade in few spikelet. Fruit at a spikelet can be distinguished into performed fruit namely internal fruit, middle fruit and outer fruit as soon as each section contain parthenocarpy fruits. This research was conducted for determine composition and content fatty acid of oil at internal fruit, middle, outer and parthenocarpy fruit from oil palm fruit. Samples of fruit came from 3 – 5 spikelet the central of FFB. Result showed that oil content of outer fruit (46.9 + 9.9)% trend higher be compared middle fruit (42.8 + 10.3)% and internal fruit (39.1 + 9.5)%. Parthenocarpy fruits have a low oil content (14.2 + 16.2)% except yellowish fruit trend high relatively oil content. The main components of fatty acid at outer fruit, middle and internal are palmitic acid, oleic, linoleic and stearic with mean value respectively (44.8 – 45.8)%, (37.6 – 38.0)%, (9.9 – 10.9)% and (4.6 – 4.8)%. Oil content at parthenocarpy fruit have amount main component of fatty acid with performed fruit but composition of palmitic acid (40.0 + 5.9)% and oleic (34.6 + 8.4)% lower while linoleic acid (16.9 + 8.5)% and linolenic (1.6 + 1.8)% higher be compared to performed fruit. Simalungun variety has the highest oil content in the part of fruit, with that PPKS 540 and La Mé respectively. PPKS 540 variety has the highest oleic acid content while PPKS 718 has the highest linoleic content.


2017 ◽  
Vol 58 ◽  
pp. 17-27 ◽  
Author(s):  
Andrey I. Khalaim ◽  
Enrique Ruíz-Cancino

Two species of ichneumon wasps (Ichneumonidae),Gelanes horstmanniKhalaim,sp. n.(Tersilochinae) andIdiogramma elbakyanaeKhalaimsp. n.(Tryphoninae), are described from the pine forest at 2800–2900 m from the State of Tlaxcala in Central Mexico; a third species,I. comstockii(Ashmead), is found to occur in the State of Nuevo León in Northeast Mexico. The generaGelanesHorstmann andIdiogrammaFörster are associated with xyelid sawflies (Xyelidae), and both, as well as the tryphonine tribe Idiogrammatini, are recorded from Mexico for the first time. An identification key to the twoIdiogrammaspecies occurring in Mexico is provided.


2017 ◽  
Vol 32 (2) ◽  
pp. 245
Author(s):  
Elmyra Ybáñez Zepeda ◽  
César Barboza Lara

El Censo de Población y Vivienda del 2010 destacó a Nuevo León como la entidad con la mayor proporción de migración municipal en relación al total de su población (10.6%), superando inclusive al Estado de México y al Distrito Federal. El objetivo de este artículo consiste en analizar la dinámica migratoria reciente en la Zona Metropolitana de Monterrey a escala municipal. Los resultados remiten a tres hallazgos principales: los municipios de origen y destino indican un flujo del centro a la periferia; el patrón migratorio predominante es intrametropolitano; y el perfil sociodemográfico de los inmigrantes presenta diferencias por municipio.AbstractThe 2010 Population and Housing Census cites Nuevo León as the state with the largest proportion of municipal migration in relation to the total population (10.6%), surpassing the State of Mexico and Mexico City. The aim of this paper is to analyze the recent migration dynamics in the Monterrey metropolitan area at the municipal level. The results yield three main findings: the municipalities of origin and destination indicate a flow from the center to the periphery; the predominant migration pattern is intrametropolitan; and the socio-demographic profile of immigrants differs by municipality.


2017 ◽  
Vol 8 (16) ◽  
Author(s):  
María Eloisa Treviño Ayala ◽  
Paula Villalpando Cadena ◽  
David Fernando Lozano Treviño ◽  
José Nicolás Barragán Codina

Key Word: Family business; leaders, owners or managers, profits, SME’s business; SME’s exportingAbstract: The main purpose of this document is to state the importance that small and medium-sized enterprises (SMEs) exporting and non-exporting have, as well as family businesses in Mexico´s economy and specifically in the state of Nuevo Leon. It establishes certain family SMEs, exporting and non-exporting, characteristics to take into consideration by Nuevo Leon leaders that seek success under the determinant of profits. It also locates qualities, from our stand point, classic and contemporaries, recommended for managers and administrators of this type of companies.Palabras Clave: Dueños o administradores, ganancias, líderes, negocios familiares; Pymes, Pymes exportadorasResumen: El presente documento tiene como finalidad plasmar la importancia que tienen las pequeñas y medianas empresas (Pymes) familiares, exportadoras y no exportadoras en la economía de México y específicamente en el estado de Nuevo León. Se establecen ciertas características a considerar de las Pymes familiares exportadoras por los líderes nuevoleoneses que buscan el éxito bajo la determinante del aumento de las ganancias. Igualmente se ubican cualidades, a nuestro juicio, clásicas y contemporáneas, recomendadas para directivos y administradores de este tipo de compañías.


Check List ◽  
2014 ◽  
Vol 10 (4) ◽  
pp. 950-953 ◽  
Author(s):  
Javier Banda-Leal ◽  
David Lazcano ◽  
Manuel Nevárez-de los Reyes ◽  
Carlos Barriga-Vallejo

2009 ◽  
Vol 32 (1) ◽  
pp. 9-18 ◽  
Author(s):  
Adriana Gutiérrez-Díez ◽  
Jesús Martínez-de la Cerda ◽  
Eduardo A. García-Zambrano ◽  
Leobardo Iracheta-Donjuan ◽  
Jesús D. Ocampo-Morales ◽  
...  

El estado de Nuevo León en México es centro de origen de Persea americana Mill. spp. drymifolia, como lo evidencian los vestigios de frutos encontrados en cuevas de la Sierra Madre Oriental. En este estado aún es posible encontrar plantas creciendo en hábitat silvestre y con características contrastantes a las de las variedades nativas que se cultivan en huertas familiares y de traspatio. Esta diversidad representa una fuente valiosa de genes y combinaciones genéticas que puede utilizarse en programas de mejoramiento de Persea. Debido a que esta diversidad genética no se ha caracterizado, se planteó su estimación en 42 árboles de aguacate nativo con base en características de peso, longitud y diámetro de fruto, peso, longitud y diámetro de semilla y, longitud y diámetro de la cavidad de la semilla, además de las relaciones longitud/diámetro de fruto y peso de semilla/peso de fruto. De éstas, sólo los pesos de semilla y fruto, y las longitudes de cavidad de semilla y de fruto fueron clasificatorios para la especie. Los resultados hicieron evidente que la clasificación de la diversidad con estos caracteres morfológicos de frutos no quedó bien representada. Para evaluar de forma directa la diversidad genética, se generaron AFLP que permitieron diferenciar cinco variedades en el análisis de agrupamiento; el no agrupamiento de variedades denominadas con el mismo nombre local permitió detectar diferencias genéticas dentro de variedades de la raza mexicana. Cuando los datos moleculares se analizaron en forma conjunta con los datos morfológicos, se logró diferenciar once variedades, y se repitió el esquema de no agrupamiento de variedades con el mismo nombre local. La utilidad de los AFLP en el análisis de diversidad genética entre variedades de P. americana de la raza mexicana quedó evidenciada con estos resultados.


2019 ◽  
Vol 20 (4) ◽  
pp. 849 ◽  
Author(s):  
Man Zhao ◽  
Wenyi Wang ◽  
Lei Wei ◽  
Peng Chen ◽  
Li Peng ◽  
...  

Unsaturated fatty acids are the main components of vegetable oils. Fatty acid desaturase 2 (FAD2) catalyzes oleic acid (OA) into linoleic acid (LA) transformations, which are essential to the profile of FAs in seeds. To further understand the roles of FAD2s in the synthesis of oil, the evolution and biocatalysis of FAD2s were comprehensively analyzed. The evolution history of the FAD2 gene family showed that most of the FAD2 genes formed monophyletic clades except in eudicots. The FAD2 genes in some eudicots diverged into constitutive and seed-specific expression clades. Notably, the biocatalysis of seed-specific or -abundant expression FAD2s in soybean, perilla, rice, and spruce revealed that their catalytic activity was strongly correlated with the total oil content of their seeds in nature. Additionally, it was found that I and Y in site 143 of GmaFAD2-1 were strictly conserved in the seed-specific and constitutive expression clades of Fabaceae, respectively. Furthermore, the site-directed mutation demonstrated that I and Y are vital to improving and reducing the activity of GmaFAD2s. Therefore, the results indicate that the activity of FAD2s in seeds might be a reference to the total oil content of seeds, and site 143 might have been specifically evolved to be required for the activity of FAD2s in some expression-diverged eudicots, especially in legumes.


Sign in / Sign up

Export Citation Format

Share Document