scholarly journals Lead concentrations in sediments and mollusc gastropod from Vridi Canal, Côte d’Ivoire

2021 ◽  
Vol 15 (1) ◽  
pp. 293-305
Author(s):  
Adjoumani Rodrigue Kouakou ◽  
N’guessan Louis Berenger Kouassi ◽  
Edmond Konan Kouassi ◽  
Albert Trokourey ◽  
Benjamin Kouassi Yao ◽  
...  
Keyword(s):  
Seasonal Variation ◽  
Ecological Risk ◽  
Food Chains ◽  
Atomic Absorption Spectrometer ◽  
Sediment Samples ◽  
Food And Agriculture ◽  
Plastic Bags ◽  
Food And Agriculture Organization ◽  
United Nations Food ◽  
Absorption Spectrometer

Lead (Pb) is one of the most frequent and toxic contaminant in the environment. It can be bioaccumulated by marine organisms through contaminated sediments as well as their food chains. The current study aimed at investigating Pb occurrence in the sediments and gastropod P. haemastostoma from Vridi Canal. Sediment samples were taken using a Van Veen steel grab of 0.02 m2 area, sealed in plastic bags and transported to the laboratory at 4 °C. Gastropod P. haemastostoma species were collected manually using gloves, and then placed in polyethylene plastic bags. The different concentrations were determined using atomic absorption spectrometer Varian AA 20. The results showed seasonal variability of Pb concentrations in sediments and P. haemastostoma. In the both matrices, Pb exhibited the same trend in the distribution between the seasons. This study also mentioned that sediments were highly  contaminated by Pb (54.27-134.71 mg/kg). Vridi Canal was found to be one of the most contaminated seaport area. Pb levels  (49.55-104.19 mg/kg) in P. haemastostoma exceeding the maximum permitted levels according to the United Nations Food and Agriculture Organization (FAO). This research demonstrated that sediments having lower ecological risk may be resulting in lower tissue Pb of P. haemastostoma. Keywords: Metal Pb, sediment, P. haemastostoma, seasonal variation

scholarly journals Sustainable and Environmentally Friendly Essential Oils Extracted from Pineapple Waste

2021 ◽  
Vol 12 (5) ◽  
pp. 6833-6844
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Bioactive Compounds ◽  
Raw Material ◽  
Ananas Comosus ◽  
Pineapple Waste ◽  
Food And Agriculture ◽  
Food And Agriculture Organization ◽  
Aldehydes And Ketones ◽  
United Nations Food

Pineapple (Ananas comosus (L.) Merril), one of the major fruit crops, is mainly used for raw consumption and for industrial juice production, which creates large amounts of residues. The United Nations Food and Agriculture Organization (FAO) has estimated that pineapple waste accounts for between 50 to 65 % of the total weight of the fruit. Industrial pineapple waste is a major source of pollution as important quantities of primary residues are not further processed. Pineapple waste contains bioactive compounds such as carotenoids, polyphenols, fibers, vitamins, enzymes, and essential oils. These phytochemicals can be used in the food industry, medicine and pharmacy, textile, and others. This review highlights essential oil and other bioactive compounds extracted from pineapple waste and the composition of pineapple essential oil. Pineapple peels are the potential raw material for essential oil extraction through various methods. Modern spectrometric methods have shown that essential oil extracted from pineapple waste comprises esters, alcohols, aldehydes, and ketones. From this overview, it can be concluded that there is an important need for further research into pineapple waste as a potential source of valuable byproducts, as well as new techniques to studying industrial organic residuals to achieve higher recovery rates of valuable bioactive compounds used in pharmaceuticals, cosmetic and chemical industries as well as for developing new functional foods.

Distribution of Food in a Specialized Hospital Using Ambient Intelligence to Improve a Model of Macroergonomics

2019 ◽  
pp. 231-241
Author(s):  
Alberto Ochoa Zezzatti ◽  
Juan Luis Hernandez Arellano ◽  
Gilberto Rivera ◽  
Daniel Azpeitia ◽  
Luis Fernando Maldonado
Keyword(s):  
Decision Making ◽  
Latin American ◽  
Distribution System ◽  
Ambient Intelligence ◽  
Food Distribution ◽  
Food And Agriculture ◽  
Food And Agriculture Organization ◽  
Specialized Hospital ◽  
United Nations Food ◽  
Latin American Countries

SIDA (Intelligent Food Distribution System, for its acronym in Spanish) is a proposed tool for the distribution of food that can be personalized depending on the medical characteristics of each patient. The target of the tool is to provide foods that contain higher nutrients in the diet set by a hospital. A model of decision trees was based on data from the organization of the United Nations Food and Agriculture Organization (FAO) and used for decision making in the simulated three basic foods based on the diet of Latin American countries typically integrated by rice, potatoes, and lentils from the parameters of fat, energy, and protein, respectively, that contains every type of food.

scholarly journals The charcoal forest: Ecology, aesthetics and the Anthropocene

2017 ◽  
Author(s):  
Daniel Niles
Keyword(s):  
Material Culture ◽  
Forest Ecology ◽  
Natural World ◽  
Culture Studies ◽  
Food And Agriculture ◽  
Food And Agriculture Organization ◽  
Cultural Persistence ◽  
United Nations Food ◽  
Shed Light

This paper explores the significance of local forms of knowledge of the natural world, especially the role of this knowledge in cultural coherence and persistence through time, and its consequent significance to the intellectual challenges of the Anthropocene. The text examines the activity of a master charcoal-maker and forest-manager in Wakayama Prefecture, Japan, who works within a landscape recognized by the United Nations’ Food and Agriculture Organization (FAO) as a Globally Important Agricultural Heritage System (GIAHS)—a place of special cultural and agroecological value. Drawing on theories of the evolution of knowledge and material culture studies, charcoal is seen as embodiment of particular understandings of the agencies of the natural world. Attention to the various stages in the production and use of charcoal sheds light on the structure of this knowledge, especially on the important areas in which qualities of one field of activity are transferred to or become essential to another. These “overlaps” link what otherwise appear to be disparate fields of activity into mutually constitutive elements of a whole. They shed light on the dynamics of cultural persistence and indicate the diversity of forms environmental knowledge; they can amplify understanding of the nature of the Anthropocene.

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