scholarly journals Analyses of plant products in greater detail

1961 ◽  
Vol 33 (1) ◽  
pp. 51-56
Author(s):  
L. Paloheimo ◽  
K. A. Vainio ◽  
M.-L. Kero ◽  
Eine Herkola
Keyword(s):  
Cell Wall ◽  
Food Analysis ◽  
Wheat Bran ◽  
Crude Protein ◽  
Critical Examination ◽  
Crude Fibre ◽  
Plant Products ◽  
Spruce Wood ◽  
Analysis Scheme

The customary Weende system for food analysis is biologically defective and even misleading. The authors have used an analysis scheme in which the conventional crude fibre determination is replaced by the determination of the total of the vegetable cell wall substances. This fraction is called membrane substances. The crude fibre is an arbitrary fragment of this total. E.g. in spruce wood the crude fibre forms about 80 % of the total of the membrane substances, and in wheat bran about 50 %. In addition the fraction »membrane substances» is divided into 4 subtractions: cellulose, pentosans, lignin, and other membrane substances. Further, a fraction called valuable carbohydrates is determined by subtracting from 100 the percentages of water, ash, crude protein, crude fat, and membane substances. This scheme has been applied to the investigation of 44 different plant products. A critical examination of the methods used has been included.

scholarly journals On the carbohydrate composition and nutritive value of some cereals

1970 ◽  
Vol 42 (1) ◽  
pp. 21-29 ◽  
Author(s):  
Maija-Liisa Salo ◽  
Kaija Kotilainen
Keyword(s):  
Cell Wall ◽  
Crude Protein ◽  
Nutritive Value ◽  
Starch Content ◽  
Crude Fibre ◽  
Main Compound ◽  
Main Components ◽  
Fibre Analysis ◽  
Hydrolysis Of

The contents and the distribution between the different grain parts of starch, hemicellulose, cellulose, crude lignin, crude protein and ash have been determined for oat, barley, rye and two wheat species. The relative proportions of the different structural units of the hemicellulose have also been determined. Furthermore, a method is proposed for the determination of the cell-wall complex in cereals. Oat and barley differ from wheat and rye to an appreciable extent only in respect of the hull. The hulls consist of strawlike material rich in lignin, cellulose and xylan; they are richer in xylan than the straw proper. The fruit and seed coat enveloping the seed (viz. the bran) contains relatively small amounts of lignin and cellulose. The bran is chiefly composed of hemicellulose with xylose and arabinose as the main components. The main compound of the endosperm is starch, although some hemicellulose and protein are present, whereas only minor amounts of cellulose and lignin can be found. In the samples investigated only small differences were noted between the compositions of wheat, rye, dehulled oat and dehulled barley; wheat had the highest starch content, rye the highest hemicellulose content, and oat the highest contents of crude protein and lignin. The cell-wall complex determined as the residue after enzymatic hydrolysis of the starch agreed well with that obtained by fractionation. On the other hand, the detergent-fibre values differed from the fractionation results considerably, and the conventional crude fibre analysis yielded results which were about 1.5 times that of cellulose. The feed-values of the different grain parts are discussed on the basis of the analysis results obtained.

scholarly journals Determination of Nutritional Composition of Ackee’s Apple Blighia sapida and Monkey Kola Cola millenii

2020 ◽  
pp. 127-136
Author(s):  
Oyetade Joshua Akinropo ◽  
Bello Lukman Abidemi ◽  
Adesiyan Blessing Adedayo
Keyword(s):  
Vitamin C ◽  
Moisture Content ◽  
Crude Protein ◽  
Proximate Analysis ◽  
Nutritional Composition ◽  
The Other ◽  
Mineral Analysis ◽  
Crude Fibre ◽  
Fruit Samples

The proximate analysis of the fruit sample that homogenously sampled from the wild was taken and quartered to get appreciable weight fit for analysis. Due to it perishable nature the quartered sample for each of the fruit was stored in an air tight container and kept in the refrigerator at a temperature of about 4°C. For the determination of the nutritional composition, parameters which include their proximate, minerals, and vitamin C were quantitatively determined while the anti-nutrient composition were qualitatively and quantitatively analyzed. Compared to ackee’s apple, monkey cola was found to consist of 64.41% moisture content, 1.69% ash, 10.21% crude fibre, 1.25% crude fat, 4.44% crude fibre, 18.06% carbohydrates while ackee’s apple consist of 73.21% moisture, 1.49% ash, 9.38 % crude protein, 13.98% crude fat, 2.08% crude fibre, 0.86% carbohydrates and 4.45% of vitamin C. The mineral analysis for both samples was quantitatively determined using Atomic Absorption spectrophotometer (AAS). The minerals determined for ackee’s apple and monkey cola were magnesium which was 1391.65 ppm, calcium 628.23 ppm, sodium 506.96 ppm, potassium 3976.14 ppm, iron 1.0 ppm, copper 5.00, zinc 4.00, cobalt 3.0 and phosphorus 2616.90 ppm the iron however, was not detected. Ackee’s apple on the other hand, consist of magnesium 498.01 ppm, calcium 478.56 ppm, sodium 398.80 ppm, potassium 4970.18 ppm, copper 2.00, zinc 5.00, cobalt 3.0 and phosphorus 373.84 ppm. The qualitative screening of the anti-nutrients revealed the absence of phenol from both fruit samples while tannins were present only in the monkey cola. The flavonoids, phytic acid and oxalate were quantitatively determined to be 1240 mg, 625 mg and 155 mg for Monkey kola and 640 mg, 340 mg and 65 mg for Ackee’s apple.

Proximate, microbial and mineral compositions of Millet Pennisetum gluacuum L. and sorghum bicolor compounded straw feed for ruminant

2021 ◽  
Vol 3 (2) ◽  
pp. 009-014
Author(s):  
Bello Muhammed magaji ◽  
Femi Maroof Adams ◽  
Azeez Ayodeji Tijani ◽  
Bamidele Joshua Awogbemi ◽  
Temitope Oluwaranti Alake ◽  
...  
Keyword(s):  
Sorghum Bicolor ◽  
Crude Protein ◽  
Plate Count ◽  
Microbiological Analysis ◽  
Crude Fibre ◽  
Total Plate Count ◽  
Mineral Compositions ◽  
Digestible Protein ◽  
Ruminant Feed

The study was aimed for the production and determination of the proximate, microbiological and mineral compositions of Millet Pennisetum gluacuum L. and Sorghum bicolor compounded straw feed for ruminant production. The result revealed a pH 5.791 which is suitable for fibre in the feed and promote chewing and rumination processes in the rumen, low percentage moisture content of 1.37 was recorded due to high drying in the field, high percentage fat and crude protein of 4.67 and 6.97 respectively this was as a result of the inclusion of groundnut cake as source of protein and fat in the feed, percentage digestible protein was 3.58, crude fibre value of 27.56 which satisfied the 18% requirement in the diet of ruminants, percentage carbohydrate was 54.2, and estimated energy value (Kcal) 286.95. Microbiological analysis showed a total plate count of 5 x10-4 cfu/g, Mould count of 1 x10-3 cfu/g, while Yeast, Staphylococcus, Coliform, Shigella, Salmonella and Escherichia coli count were not detected respectively. Mineral composition of sorghum and millet Pennisetum gluacuum compounded straw feed showed the presence of Fe, Na, K, Mg, Zn, Cu Mn, and Cr as 120.4189mg/kg, 570.9844 mg/kg, 227.1493 mg/kg, 568.2669 mg/kg, 12.9195mg/kg, 14.0666mg/kg, 62.9926mg/kg respectively and 18.584 mg/kg while Ni and Pb were not detected in the formulated ruminant feed.

scholarly journals Lifecycle Evaluation of the Nutritional Benefits and Biosafety of Snail (Archachatina marginata)

2019 ◽  
pp. 1-7
Author(s):  
Kehinde, Abiodun Solomon ◽  
Babatunde, Taiye Oluwasola ◽  
Kehinde, Olujide Johnson
Keyword(s):  
Heavy Metals ◽  
Lipid Profile ◽  
Total Cholesterol ◽  
Crude Protein ◽  
Mineral Exploration ◽  
Ether Extract ◽  
Crude Fibre ◽  
Yield Data ◽  
Carcass Yield

Ninety snails Archachatina marginata (Swainson, 1821), which comprised 30 each of adults (325.43 ± 2.03 g), growers (119.05 ± 1.05 g) and snailets (33.05 ± 1.00 g) were used to determine the lifecycle nutritional and bio-safety benefits of consumption of snail meat. This study was aimed to further investigate, the nutrients, heavy metals and bio-safety of snail consumed by Nigerians, due to increasing industrialization, use of agro-chemical mineral exploration, fumes from vehicles and improper disposal of refuse and sewage. Each age group was regarded as a treatment, for the holistic determination of the proximate, macronutrient, heavy metals, lipid profile and carcass yield of the snail meat. The snail was carefully cleaned and dressed for meat samples collection in triplicates for subsequent laboratory determination of the nutritional and bio-safety parameters. The collected samples were processed, using standard procedures. Data were collected for proximate components (Crude protein, crude fibre, Ether Extract, NFE and Ash), macronutrients (Na, K, Ca, P, Mg and Fe) heavy metals (Cu, Pb, Ni, Cd, Cr and MN), total cholesterol and lipid profile (HDL, LDL and FFA) and carcass yield. Data collected were subjected to (ANOVA), in a complete randomized design, while significant means were separated using Duncan’s Multiple Range Test. Proximate components such as Crude protein 15.88±1,39% and ether extract 1.24 ± 0.22%, increased (P<0.05) with the age of snail, while NFE reduced with age. Highest (P<0.05) carcass yield (44.23%) was obtained for snailets, with corresponding least (P<0.05) values for total cholesterol, LDL, HDL and FFA, cholesterol levels were significantly varied, in all groups and the contents of macronutrients and heavy metals in snail meat were tolerable in human nutrition and therefore not deleterious.

On the content of cell-wall constituents in various plant materials

1965 ◽  
Vol 37 (2) ◽  
pp. 127-134
Author(s):  
Maija-Liisa Salo ◽  
Terttu Mäkinen
Keyword(s):  
Cell Wall ◽  
Crude Protein ◽  
Cell Wall Composition ◽  
Growth Stages ◽  
Crude Fibre ◽  
Plant Materials ◽  
Plant Parts

In this investigation, analyses were made of the contents of hemicellulose, cellulose, crude lignin, crude protein and ash in 43 different plant materials. In addition, the proportions of various sugar anhydrides in the hemicellulose fraction were determined. The carbohydrate analyses were made by hydrolysing to monosaccharides, except for the uronic anhydrides, which were determined by the decarboxylation method. The sum of the cell-wall constituents thus determined was subsequently compared with Paloheimo’s membrane substances and crude fibre. Large variations in the cell-wall composition were found between different plant materials. Furthermore, there were large differences in the solubility of the cell-wall substances of different plant materials in the hydrolysing procedures used in determinations of membrane substances and crude fibre. The hemicellulose composition of different species in the same genus and even in the same family was found to be similar in definite plant parts and at definite growth stages. This appears to be a generic characteristic in the chemical taxonomy of plants.

scholarly journals Content of nutrients and energy in pasture vegetation and their apparent digestibility in Old Kladruber horses

2013 ◽  
Vol 82 (1) ◽  
pp. 37-41
Author(s):  
Eva Straková ◽  
Pavel Suchý
Keyword(s):  
Organic Matter ◽  
Crude Protein ◽  
Dry Matter ◽  
Apparent Digestibility ◽  
Crude Fibre ◽  
Acid Detergent Lignin ◽  
Nitrogen Free Extract ◽  
Pure Protein ◽  
Acid Detergent Fibre

This study focuses on the determination of apparent digestibility of pasture vegetation nutrients in horses of the Old Kladruber breed through a balance indicator method (determination of acid insoluble ash). When evaluating the nitrogenous substances, their determination was based on the content of pure protein (sum of amino acids) which is more accurate than crude protein. There were differences in the chemical composition of dry matter from pasture vegetation and horse excrements. Regarding crude fat, crude fibre, acid detergent fibre, neutral detergent fibre, acid detergent lignin, ash, P and Mg, the average values in dry matter of horse excrements were significantly (P≤ 0.01) higher; on the contrary, we found significantly (P≤ 0.01) lower mean values of nitrogen-free extract, organic matter and Ca ​​in the dry mass of pasture grass. The highest coefficient of apparent digestibility for organic nutrients was determined in the nitrogen-free extract (73%) followed with organic matter (71%), pure protein (68%), crude protein (65%) and crude fat (61%). In case of fibre and its fractions, the apparent digestibility coefficients decreased as follows: crude fibre (66%), neutral detergent fibre (66%), acid detergent fibre (63%) and acid detergent lignin (42%). Significantly lower values were determined for coefficients of apparent digestibility for minerals P (16%) and Mg (50%), which highlights the need for their regular supplementation in horses on pasture. This study extends the current state of knowledge regarding the apparent digestibility of pasture vegetation which is a prerequisite for optimal nutrition of horses.

Delignification studies on spruce wood tissue fractions isolated from outer and inner cell wall regions

1987 ◽  
Vol 2 (3) ◽  
pp. 92-96 ◽  
Author(s):  
Eero Sjostrom ◽  
Juha Sorvari ◽  
Aarno Klernola ◽  
Jaakko Laine
Keyword(s):  
Cell Wall ◽  
Wood Tissue ◽  
Spruce Wood
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