FATTY ACIDS, AMINO ACIDS, MINERAL CONTENTS, AND PROXIMATE COMPOSITION OF SOME BROWN SEAWEEDS1

2012 ◽  
Vol 48 (2) ◽  
pp. 285-292 ◽  
Author(s):  
Mehdi Tabarsa ◽  
Masoud Rezaei ◽  
Zohreh Ramezanpour ◽  
J. Robert Waaland ◽  
Reza Rabiei
2019 ◽  
Vol 279 ◽  
pp. 356-363 ◽  
Author(s):  
Yu Matsuo ◽  
Larissa Akari Miura ◽  
Tetsuya Araki ◽  
Yumiko Yoshie-Stark

2020 ◽  
Vol 14 (4) ◽  
pp. 1124-1127
Author(s):  
Noël Tenyang ◽  
Roger Ponka ◽  
Hilaire Macaire Womeni

Fish with higher nutrient qualities can be used to solve malnutrition problems in Africa. So the aim of this study was to evaluate the effect of local smoking on proximate composition and lipid oxidation of Chrysichthys nigrodigitatus collected in Cameroon. The proximate composition was assessed using standard methods while lipid quality assessment was based on the determination of biochemical indexes. A change on fatty acid composition was evaluated by gas chromatography while minerals composition was evaluated by spectrophotometer. On nutritional point of view, raw fish have high protein, lipid and ash contents (51.87, 37.48 and 8.55 g/100 g dry weight respectively). Unsaturated fatty acid may be up to 57% of the total fatty acids. Raw C. nigrodigitatus contain reasonable amount of minerals. Smoking process increased ash and lipid content while proteins and moisture contents are reduced in these fish. The iodine value of C. nigrodigitatus was reduced while acid, peroxide and TOTOX values increased during smoking. The marked decrease of polyunsaturated fatty acids was noted during processing. Mineral contents were affected by smoking process. Calcium, magnesium, potassium, sodium, manganese and iron contents increased significantly. In conclusion, hot smoking enhances nutrients content of C. nigrodigitatus while significant reduction in lipid quality was recorded.Keywords: Chrysichthys nigrodigitatus, smoking process, nutritional value, lipid oxidation, mineral contents. Frence Title; Effet du fumage traditionnel sur la composition chimique, l’état d’oxydation des lipides, la composition en acide gras et la teneur en minéraux de Chrysichthys nigrodigitatus du Lac Maga au Cameroun Le Poisson est l’une des sources d’éléments nutritifs de qualité pouvant contribuer à prévenir la malnutrition en Afrique. Ce travail s’est donné pour objectif d’évaluer l’effet du fumage traditionnel sur la composition chimique et l’état d’oxydation des lipides de Chrysichthys nigrodigitatus provenant du Lac Maga au Cameroun. Les méthodes standards ont été utilisées pour la détermination de la composition chimique, la mesure de l’état d’oxydation des lipides par des indices chimiques, la composition en acides gras par chromatographie en phase gazeuse et les minéraux par spectrophotométrie. Du point de vue nutritionnel, ce poisson frais contient respectivement 51,87 ; 37,48 and 8,55 g/100 g de matière sèches de protéines, lipides et cendres. Il contient également 57% d’acides gras insaturés et une quantité raisonnable de minéraux. Le traitement de fumage provoque une augmentation de la teneur en cendres et en lipides. Par contre la teneur en eau et en protéines diminuent. L’indice d’iode baisse tandis que les indices d’acide, de peroxyde et de TBARs augmentent. Une diminution du taux d’acides gras polyinsaturés est observée. Les minéraux sont également affectés au cours du fumage. Le traitement de fumage améliore la teneur en nutriments de C. nigrodigitatus, par contre réduit la qualité lipidique de celui-ci. Mots clés : Chrysichthys nigrodigitatus, fumage, valeur nutritionnelle, oxydation des lipides, teneur en minéraux.  


2021 ◽  
Author(s):  
Parastoo Pourashouri ◽  
Hojat Mirsadeghi ◽  
Aynaz Khodanazary

Abstract In this study, carotenoprotein from Pacific white shrimp (Litopenaeus vannamei) processing waste was extracted with the aid of alcalase (CP-A) and pepsin (CP-P) at various levels (0-4 units/100g waste) for different times (0–240 min). Recovery of carotenoids and protein increased with increasing enzymes levels (3 unit/g) and hydrolysis times until 180 min (p<0.05). The extracted carotenoprotein by pepsin and alcalase consisted of 72.11-75.32% protein contents and carotenoids were in the range of 330-530 µg/g samples. The phenylalanine, lysine, methionine and valine as essential amino acids were high at CP-A and CP-P. The dominant non-essential amino acids in carotenoproteins were aspartic acid, glutamic acid, glycine and alanine. It was rich in mono and polyunsaturated fatty acids. The CP-A showed higher DHA and EPA (8.52 and 6.49%) than CP-P (5.55 and 5.49%). The saturated fatty acids were reduced after enzymatic hydrolysis and contents were higher in carotenoproteins. The extracted samples showed a significant amount of mineral contents. Sodium, phosphorus, magnesium and potassium contents were found to be higher in CP-A. The lead and copper reduced as a result of hydrolysis. Therefore, carotenoprotein from processing residue of pacific white shrimp could be used as the value-added nutritious enriching food or feed powder.


2016 ◽  
Vol 19 (1) ◽  
pp. 51 ◽  
Author(s):  
Riviani Riviani ◽  
Sri Purwaningsih ◽  
Kustiariyah Tarman

<p>Public coastal had trust natural material as medicine became one of the most important things in<br />the discovery of medicine latest. Papua, Belitung, and Kendari coastal communities believed that tambelo<br />(Bactronophorus sp.) can treat various kinds of diseases like lumbago, rheumatism, cough, flu, malaria, and<br />improve production of the breast milk, increase appetite, and vitality of man. It was important to know what<br />course content of tambelo. Tambelo could be examined amino acids, fatty acids, and mineral contents. The<br />highest essential amino acids in tambelo were leucyne, lysine, and valin of 0.57%, 0.39%, 0.36%. The highest<br />non essential amino acid was alanin, glutamic acid, and aspartic acid of 1.24%, 1.09%, and 0.78%. Barrier<br />of amino acid was histidine. Fatty acid total of tambelo was 29.52%, whereas the fatty acid compositions<br />consist of 10.09% saturated fatty acid (SAFA) was 14.37% monounsaturated fatty acid (MUFA) was 5.06%<br />polyunsaturated fatty acids (PUFAs). Among them, those occuring in the highest proportions were palmatic<br />acid (4.49%), oleic acid (5.73%), palmitoleic acid (4.96%), and Aracidic acid (1.88%). Tambelo had n6/n3<br />ratio of 1.84. Tambelo had mineral contents as Natrium of 1144000 mg/kg, calcium of 17000 mg/kg, Kalium<br />of 21000 mg/kg, magnesium of 13000 mg/kg, phosphor of 1900 mg/kg, cadmium &lt; 0.24 mg/kg, and lead<br />&lt;1.25 mg/kg.<br />Keyword : amino acids, Bactronophorus sp., fatty acids, mineral contents, tambelo</p>


Author(s):  
Oluwafemi Akinsola Omole ◽  
Oluwafunmike Blessing Adepoju ◽  
Oluwasola Toluwalope Moradeyo ◽  
Olayinka Josephine Okuneye ◽  
Adunola Abosede Bello

The nutritive value of smoked, dried Procambarus clarkii sourced from Akwa Ibom, Rivers and Lagos states of Nigeria were evaluated and compared.  The proximate composition of the crayfish samples were determined using official methods of analysis, mineral composition were determined using Atomic Absorption Spectrophotometer and  the amino acid composition were analysed using Amino Acid Analyser. The proximate composition of the crayfish samples from three different locations (Akwa Ibom, Lagos and Rivers states) such as moisture, crude protein, crude fat and ash contents showed significant difference (p<0.05) across the selected locations while crude fibre and carbohydrate content showed no significant difference (p<0.05) across the selected locations. The amino acids composition gave the crayfish sample from Akwa Ibom state as the richest source of essential amino acids. The mineral contents of the crayfish samples such as potassium, phosphorus, magnesium, manganese and calcium showed significant difference (p<0.05) across the selected locations while calcium, zinc and sodium contents showed no significant difference (p<0.05) across the selected locations. Comparing their nutrient component, smoked, dried P. Clarkia from Awka Ibom state possess the richest nutritive value. 


Author(s):  
A. K. Balange ◽  
K. A. Martin Xavier ◽  
Sanath Kumar ◽  
B. B. Nayak ◽  
G. Venkateshwarlu ◽  
...  

An attempt was made to study the nutrient profile of traditionally sun-dried Acetes with respect to its proximate composition, amino acids, fatty acids, minerals and heavy metals. From the results, it was found that dried Acetes contained 19.00±0.70% moisture, 48.29 ± 0.64% crude protein, 16.05±0.52% ash and 3.62±0.09% crude fat. Biopolymer content in dried Acetes showed 10% chitin. Amino acid profile of dried Acetes confirmed that it could serve as a significant source of essential amino acids. Fatty acid profile revealed 9, 12-otadecadieonic acid (17.08%), docosahexaenoic acid (DHA) (15.69%), eicosapentaenoic acid (EPA) (13.45%) and docosanoic acid (11.75%) as the major fatty acids. Mineral profiling indicated the presence of P, Ca, K, Mg, Na and Fe. Heavy metal analysis indicated the presence of Cd, Cu, Pb and Zn. However, harmful metals like cadmium and lead were found to be low. From microbiological quality analysis of dried Acetes, the total plate count and faecal coliforms count were found to be 4.1 x 103 cfu g-1 and 35 MPN per100 ml, respectively while Staphylococcus aureus colonies were not detected. Results of the study indicated that dried Acetes was not processed properly and hygienically as revealed by its content of high moisture and faecal coliforms, respectively. Further, based on proximate composition, amino acids, fatty acids and mineral profile, it can be concluded that dried Acetes can be a good source of health beneficial nutrients.


2011 ◽  
Vol 46 (2) ◽  
pp. 141-146 ◽  
Author(s):  
KSR Murthy ◽  
S Emmanuel

The nutritional composition and antinutritional factors of Rhynchosia bracteata Benth. underexploited tribal pulses locally known as Advi Chekkudu in Telugu, used as food by local tribals in the Rollapenta forest, Kurnool district, Nallamalais of Andhra Pradesh. The mature seed samples were analysed for proximate composition, total (true) seed protein fractions, amino acid composition, fatty acids profile, mineral and antinutritional factors. The investigated seed samples contained higher amount of crude protein, crude fat, ash and nitrogen free extractives constitute 20.18, 6.16, 6.12 and 61.31 % respectively. The calorific value of the seed weight 100 g dry seed material was 366.86 K.cal. The essential amino acids, leucine, tyrosine and phenylalanine, were present in relatively large quantities. The fatty acid profiles revealed that the seed lipids contained higher concentrations of palmitic and linoleic acids. The seeds are rich in magnesium, iron potassium and phosphorous. Antinutritional factors such as total free phenols, (3.76 %) tannins (0.29%), L -DOPA (0.51%), hydrogen cyanide (0.066%) and phytic acid (0.18%) are present in variable quantities. This paper presents the chemical composition and nutritional potential of Rhynchosia bracteata seeds with regard to its suitability as a regular component in human diet. Key words. Rhynchosia bracteata; Proximate composition; Amino acids; Antinutritional factors; Fatty acids; Protein fractions; Hemagglutinating activity   DOI: http://dx.doi.org/10.3329/bjsir.v46i2.4488 Bangladesh J. Sci. Ind. Res. 46(2), 141-146, 2011


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