Alterations in lipids and minerals in relation to larval trematode infections of Nerita polita marine snails

Summary Marine snails provide an important source of vitamins, proteins, minerals, and essential fatty acids, and their mucus has a therapeutic significance. Parasitic infection of larval trematodes in these snails affects their nutritional value. The present study aimed to screen Nerita polita marine snails for the prevalence of cercarial infections and to evaluate the changes in lipids and some minerals in the infected as well as non-infected ones. Snails were collected randomly from February 2018 to January 2019 from the Red Sea Obhor bay, Jeddah city, Saudi Arabia. The amount of triglycerides, cholesterol, and phospholipids in the Digestive Gland Gonad Complex (DGG), hemolymph, and Snail Conditioned Water (SCW) of non-infected and infected Nerita polita snail was estimated using a spectrophotometer. Minerals content such as Ca, Zn, Pb, Na, Mn, Mg, K, Fe, Cu, and Cd, in the DGG and shell in the infected and non-infected snails were analyzed using an Inductively Coupled Plasma Optical Emission Spectrometer (ICP-OES). Two types of cercariae were detected, ocellate furcocercus cercaria (Trichobilharzia regent) and xiphidiocercaria (Litorina saxatilis VII). The study showed that there is a fl uctuation in the concentration of lipids and minerals between increase and decrease in DGG, hemolymph, shell, and SCW in infected snails. The nutritive value of the snails is affected with infection through the decrease of some lipids and minerals in infected snails. Further qualitative studies are needed.

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Soil Pollution: A Case Study on the Determination of Toxic Elements in Soil in Jeddah City, Saudi Arabia

International Journal of Chemistry ◽

10.5539/ijc.v9n2p37 ◽

2017 ◽

Vol 9 (2) ◽

pp. 37

Author(s):

Basma G. Alhogbi ◽

Amani. F. Alsolame

Keyword(s):

Inductively Coupled Plasma ◽

Toxic Elements ◽

Optical Emission ◽

Soil Samples ◽

Emission Spectrometry ◽

Residential Areas ◽

Inductively Coupled ◽

Jeddah City ◽

Quality Guidelines ◽

Cr Concentration

A considerable increase in the population of Jeddah City and the construction of new residential areas in the last few years has been noticed. Thus, a total of 23 soil samples were collected from three different areas of Sewage Lake, namely, Area A (polluted; the highest concentration of toxic elements), Area B (Southeast), and Area C (Northwest) for the analysis of toxic elements. The soil samples were digested by acid digestion to quantify the As, Co, Cr, Hg, Ni, V, Pb, and Zn using Inductively Coupled Plasma- Optical Emission Spectrometry (ICP-OES). Zn has the highest concentration in all studied areas (4821±10.2 mg/kg for A, 1108.6±9.5 mg/kg for B and 2339.8±8.7 mg/kg for C). On the other hand, Cr concentration was found 872±2.5 mg/kg for A, 1128±5.4 mg/kg for B and 680±3.4 mg/kg for C. These elements were above the level of the quality guidelines (300 mg/kg for Zn and 4.0 mg/kg for Cr). In majority of the area C samples, the concentration of Hg was found below the detection limit. The results indicated that the area A has a significantly higher metal contents as it is an inference polluted area. Hence, it is influencing the level of metal concentrations in area B, and area C might be due to wind spread. The indiscriminate disposal of hazardous waste in the study area causes a significant source of the soil contamination.

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Analysis of macro- and Microminerals Content in the Einkorn (Triticum monococcum L.) Samples Cultivated in Kastamonu, Turkey

Turkish Journal of Agriculture - Food Science and Technology ◽

10.24925/turjaf.v9i8.1436-1442.4251 ◽

2021 ◽

Vol 9 (8) ◽

pp. 1436-1442

Author(s):

Şeref Turhan ◽

Aslı Kurnaz

Keyword(s):

Inductively Coupled Plasma ◽

Nutritional Value ◽

Optical Emission ◽

Triticum Monococcum ◽

Emission Spectrometry ◽

Acid Digestion ◽

Inductively Coupled ◽

Microwave Assisted ◽

Cereal Product ◽

Plasma Optical Emission Spectrometry

Wheat is an important cereal product because of its nutritional value, economy, culture, and history. Einkorn (Triticum monococcum L.) assumed as the oldest wheat. Einkorn locally called “siyez” has recently become popular as a super grain with the thought of being very nutritious in Turkey. In this study, the contents of macrominerals (Na, Mg, Ca, and K) and microminerals (Cr, Cu, Fe, Mn and Zn) in twenty-one einkorn samples collected from different cultivation areas in Kastamonu were determined by using an inductively coupled plasma-optical emission spectrometry following microwave-assisted acid digestion. The results were compared with those analyzed in einkorn and other wheat types in the literature. Average concentrations of K, Ca, Mg, Na, Fe, Zn, Mn, Cr and Cu analyzed in einkorn samples were found as 3712, 1303, 656, 53, 167, 34, 29, 0,7 and 0,6 mg kg-1, respectively. The literature comparison revealed that the investigated einkorn samples were richer in terms of Ca and Fe contents compared to einkorn, emmer, spelt, buckwheat, and durum wheat samples grown in our country and different countries.

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