Aim: To establish the micro and macronutrient values of O. hubbsorum B and to evaluate its potential contribution to Mexican diet, since this organism is available all year in the Mexican Pacific Coast. Study Design: Transversal study. Place and Duration of Study: Samples of Octopus hubbsorum were bought from fishermen in Acapulco, in the Mexican Pacific Coast during Autumn 2016 Original Research ArticleMethodology: Five O. hubbsorum were bought from local fishermen during the second week of Novermber, 2016. Moisture content was determined using the direct drying method. Protein content was determined according to the principle of the Kjeldahl method. Lipid content determination was carried out by the semicontinuous solvent extraction method. Determination of raw fiber was performed by an acid-alkaline digestion. Calcium and iron content was determined by atomic absorption spectroscopy, whilst phosphorous content analysis was performed by colorimetry. Results: High amount of water and protein were found in O. hubbsorum B, being 64.15 % and 69.38%, respectively. On the other hand, lipids were low and no fiber was found. Finally, the content of Ca, Fe and P in mg/100g was 24.33, 1.4 and 120.67 respectively. Conclusion: Octopus hubbsorum B is a rather good source of proteins. This could help diminishing proteic-caloric malnutrition of people living in coastal areas. However, octopus should be eaten with other nutritional sources to get a balanced diet.
Abstract:The health benefits of nutrients provided by edible insects are not properly studied, even though insect intake in Latin American and Asia is a cultural tradition since ancient times. Insects from the giant water bug (Belostomidae family) are consumed both in Mexico and Thailand, and are known as "Cucarachon de agua" (Lethocerus americanus) and "Mangda" (Lethocerus indicus), respectively. Raw samples of these insects were collected on 2014 at Xochimilco channels from Mexico and from Warorot night market in Chiang Mai, Thailand to further analyze nutrient composition of samples according to official methods of analysis (AOAC) techniques. The nutrient compositions were as following: proteins 60.12% and 53.11%; lipids 5.72% and 8.15%; minerals 5.46% and 6.75%; fiber 10.95 % and 12.23%; soluble carbohydrates 17.75% and 19.74%, for insects obtained from Mexico and Thailand, respectively. Giant water bug shows differences in nutrient composition. It may be the consequence of differences in the environment where they acquire the nutrients necessary for growth and reproduction. However, giant water bugs are available all year around and are a good source of proteins that could help people to obtain a cheaper source of this important macronutrient.
Escamoles, ant eggs (Liometopum apiculatum M), are edible insects consumed in great numbers and appreciated for their sensory characteristics, but not for their nutritional value. In Mexico, they reproduce in arid and semi-arid zones of Mexico and several states (Puebla, Tlaxcala, Hidalgo). Samples were gathered to determine reproduction conditions and perform an insect analysis to generate data composition in macronutrients, on dry basis, according to AOAC methods. The obtained data were: proteins: 42.12-50.63%; lipids: 30.27-34.96%; minerals: 6.53-7.85%; fibres: 1.91-2.56%; and soluble carbohydrates: 6.80-18.27%. Entomological material was collected in spring 2014, 3 nests for each zone, all from different altitudes and agroclimatic regions. Samples were representative for the insect supply in the areas studied. Insects are high in proteins and lipids, compared with most of the commonly consumed food, due to their high content of fatty acids; they must be refrigerated for later consumption. Minerals are moderated. Fibre and soluble carbohydrate levels are low, but an excess of proteins can be converted into carbohydrates via gluconeogenesis. Escamoles reproduce once a year in the spring, but sometimes one nest can provide escamoles eggs twice in the same season, once at the beginning and again at the end, depending on the biotic and abiotic conditions of their environment. Escamoles are a good source of nutrients; however, some rural people sell them to obtain extra income rather than consume them to improve their nutritional condition and welfare.
The fruits of mamey, Calocarpum mammosum L., are often infested by the Anastrepha ludens L. fruit fly. The wasted fruits cause huge economic losses. The aim of this study was to investigate the nutritional value of mamey fruits when infested with larvae, and to propose their consumption. Mamey fruits were collected with and without the larvae in the city of Coatlán del Río, in Morelos, Mexico. A proximal nutrient analysis of the mamey pulp and A. ludens larvae were conducted. The organoleptic properties of ice cream from the mamey fruits with and without the larvae were tasted by a panel. The results obtained showed that the presence of larvae in the mamey fruits increases their nutritional value and the organoleptic study showed no difference between the clean and the infested products.
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