scholarly journals Characteristic Profiles of an Original Drink Sap from Male and Female Deglet Nour Palm (Phoenix dactyliferaL.) during Collection Period

2016 ◽  
Vol 2016 ◽  
pp. 1-8
Author(s):  
Ines Makhlouf-Gafsi ◽  
Abir Mokni-Ghribi ◽  
Hamadi Attia ◽  
Christophe Blecker ◽  
Souhail Besbes
Keyword(s):  
Dry Matter ◽  
Physiological Stress ◽  
Sugar Content ◽  
Phoenix Dactylifera ◽  
Matter Content ◽  
Dry Matter Content ◽  
Male And Female ◽  
Kjeldahl Method ◽  
Protein Amino Acids ◽  
Collection Period

This work aimed to evaluate the nutritional quality of a typical natural drink from male and female Deglet Nour (DN) date palm (Phoenix dactyliferaL.) during the collection period. Dry matter, protein, amino acids, and sugar profiles were determined using AFNOR norm, Kjeldahl method, HPLC, and HPAEC-PAD, respectively. The male sap dry matter content was higher than that of the female. It decreased significantly through the tapping period. During the harvest, the male sap protein content decreased but increased significantly in the female sap. Finally, sugar fraction, for both male and female DN sap, was dominated by sucrose, glucose, fructose, and a small amount of myo-inositol. During the collection time, sugar content is affected by the sex especially for myo-inositol content that increased significantly in the female date sap, unlike that of the male one. This may be related to the fact that the male palm is more resistant to physiological stress, inducing myo-inositol formation during tapping.

scholarly journals Iodine Biofortification of Potato (Solanum tuberosum L.) Grown in Field

Agronomy ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1916
Author(s):  
Iwona Ledwożyw-Smoleń ◽  
Sylwester Smoleń ◽  
Stanisław Rożek ◽  
Włodzimierz Sady ◽  
Piotr Strzetelski
Keyword(s):  
Dry Matter ◽  
Foliar Application ◽  
Solanum Tuberosum L ◽  
Sugar Content ◽  
Soluble Sugar ◽  
Iodine Content ◽  
Matter Content ◽  
Dry Matter Content ◽  
Potato Tubers ◽  
Daily Diet

Despite wide prevention programmes, iodine deficiency remains a substantial problem in various populations around the world. Consumption of crop plants with increased iodine content may help supply additional amounts of that element in a daily diet. The aim of the work was to evaluate the efficiency of iodine biofortification of potato tubers. Soil application of KI and foliar application of KIO3 in doses up to 2.0 kg I ha−1 were tested in a three-year field experiment. Biomass, yield as well as dry matter, iodine, starch, and soluble sugar content in potato tubers were analyzed. No negative effect of tested methods of iodine application on potato yield or dry matter content was observed. Both soil and foliar application of iodine allowed to obtain potato tubers with increased content of that element with no decrease of starch or sugar content. The highest efficiency of iodine biofortification was noted for foliar spraying with KIO3 in a dose of 2.0 kg I ha−1. The obtained level of iodine in 100 g of potatoes could be sufficient to cover up to 25% of Recommended Daily Allowance for that element. The findings of the study indicate that potatoes biofortified with iodine can become an additional source of I in a daily diet.

Dry matter, Free Sugar and Starch Changes in Tuber Regions of White Yam (Dioscorea rotundata Poir.), and the Effect of Storage Environment

2015 ◽  
Vol 4 (1) ◽  
pp. 303-309
Author(s):  
Elsie Hamadina
Keyword(s):  
Dry Matter ◽  
Starch Content ◽  
Sugar Content ◽  
Matter Content ◽  
Free Sugar ◽  
Dry Matter Content ◽  
Tail Region ◽  
Head Region ◽  
Dioscorea Rotundata ◽  
Rapid Changes

This study was conducted to determine the changes in dry matter (DM), free sugar (FS) and starch contents in the three yam (D. rotundata) tuber regions under two storage environmental conditions (natural light- yam barn, or and darkness). Three varieties of D. rotundata (alaako, Dodoro and Odo) were studied. The dry matter content of the Head region was the highest (28.6%), followed by the Middle (26.9%) and Tail (22.3%) regions. Change in dry matter content of the tuber is mainly due to rapid changes in the dry matter content of the Tail region over time. Storage environment significantly (P< 0.05) affected dry matter content of the three tuber regions at 8 and 16 weeks in storage (WIS). Head regions per variety were lower in dry matter when stored under Light than in the Dark at 8 WIS, while the reverse was the case for the Tail. This may relate to the release of endodormancy. By 16 WIS, when tubers stored under Light had well developed sprouts and those stored in the Dark only showed the first sign of sprouting, all Head regions had higher dry matter content under Light than in Dark storage. This may be due to the presence of sprouts. Storage environment did not significantly affect starch content at the various tuber regions. Head regions had higher percentage free sugar content under Light than Dark storage, and these effects were manifested between 8 and 16 WIS.

scholarly journals Digestion of dry and high-moisture maize diets in the stomach of the pig

1974 ◽  
Vol 32 (3) ◽  
pp. 639-646 ◽  
Author(s):  
J. H. G. Holmes ◽  
H. S. Bayley ◽  
F. D. Horney
Keyword(s):  
Dry Matter ◽  
Matter Content ◽  
Dry Matter Intake ◽  
Pancreatic Ducts ◽  
Dry Matter Content ◽  
High Moisture ◽  
Free Glucose ◽  
G 12 ◽  
Collection Period ◽  
The Mean

1. Pigs were fitted with re-entrant duodenal cannulas anterior to the pancreatic duct, and total collections of digesta were made for 12 h periods.2. Maize–soya-bean diets were made from maize which had been harvested with a dry-matter content of 770 g/kg and either dried, preserved with acetic or propionic acid or ensiled naturally. The pigs received two meals of these diets/d at 12 h intervals, and the amount of digesta flowing through their cannulas was measured.3. Between 4.5 and 5.25 l of digesta flowed through the cannulas in the 12 h collection period, 0.9 of the total 12 h flow passed through the cannulas in the first 9 h with the dry-maize diet and 0.8 with the acid-treated-maize diets.4. The mean total dry matter intake was 358 g/meal, and 304 g dry matter passed through the duodenal cannulas in the 12 h collection period. The corresponding intake and flow of nitrogen (g/12 h) was 11.1 and 9.6, and for chromic oxide 1.13 and 0.94.5. The pigs consumed 205 g starch (total α-linked glucose polymers)/meal, and 1.5 g free glucose/meal. Only 110 g starch and 4.1 g free glucose reached the duodenal cannulas, suggesting that digestion and absorption of up to 92 g glucose had taken place anterior to the pancreatic ducts.

scholarly journals The Effect of Polyethylene Film and Polypropylene Non-Woven Fabric Cover on Cobs Parameters and Nutritional Value of Two Sweet Maize (Zea mays L. var. saccharata Bailey) Hybrids

Agronomy ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 539
Author(s):  
Katarzyna Adamczewska-Sowińska ◽  
Józef Sowiński ◽  
Mirosław Anioł ◽  
Piotr Ochodzki ◽  
Roman Warzecha
Keyword(s):  
Dry Matter ◽  
Sugar Content ◽  
Soluble Sugars ◽  
Total Yield ◽  
Morphological Characteristics ◽  
Matter Content ◽  
Polyethylene Film ◽  
Woven Fabric ◽  
Dry Matter Content ◽  
F1 Hybrid

In 2012–2014, at the Research and Didactic Station of the Department of Horticulture at Wroclaw University of Environmental and Life Sciences (51°19′06′′ N, 17°03′49′′ E), field studies were conducted to evaluate the responses of two sweet maize hybrids to sowing dates (early and optimum) and five methods of maize plant coverings—polyethylene film: perforated (PE), red (PER), green (PEG), polypropylene non-woven fabric (PP), and control (C), with non-irrigation systems. Total yield and morphological characteristics of cobs were compared. In 2012 soluble sugars and carotenoids content were measured. The use of maize cover at the beginning of growth (PE and PER) significantly influenced the number of rows, while PE and PEG increased the number of grains per cob. Covering maize sown at a later date, with polyethylene film and non-woven fabric, ensured better production effects than using such covers after earlier sowing. Signet F1 hybrid was charact0erized by significantly higher sugar content and Rustler F1 by higher lutein and zeaxanthin levels. The application of the optimum sowing date resulted in a significantly higher yield of cobs, by 11.3%, than after early sowing. The yield increase as a result of the applied covers was higher after sowing at a later date. The content of dry matter in grains was positively correlated with the content of sucrose, glucose, and fructose. The change in carotenoids content also depended on the accumulation of dry matter in the kernels. The study confirmed the correlation of sweet maize accumulated growing degree days (AGDD), and revealed dependence of grain quality on dry matter content in the grain.

scholarly journals Effect of different stages of maturity and postharvest treatments on quality and storability of pineapple

2016 ◽  
Vol 12 (2) ◽  
pp. 251-260 ◽  
Author(s):  
SI Kamol ◽  
J Howlader ◽  
GC Sutra Dhar ◽  
M Aklimuzzaman
Keyword(s):  
Dry Matter ◽  
Sugar Content ◽  
Ascorbic Acid Content ◽  
Titratable Acidity ◽  
Matter Content ◽  
Total Sugar ◽  
Dry Matter Content ◽  
Edible Portion ◽  
Total Sugar Content ◽  
Total Titratable Acidity

A study was undertaken to evaluate the effects of different maturity stages and postharvest treatments on the storage behavior of Pineapple fruits. Two distinct maturity stages viz., premature (30 days before attaining optimum maturity) and optimum mature fruits were harvested and placed in the laboratory room. On the same day six postharvest treatments viz., control, preserved in unperforated polyethylene bag, tilt, 100 ppm NAA, 200 ppm NAA, and 300 ppm NAA were assigned to that fruits. The two-factor experiment was laid out in a completely randomized design with three replications. There was significant variation between two maturity stages and among different treatments in relation to fruit characteristics. At 18 days of storage, premature fruits contained the maximum shelf-life (19.33 days), total weight loss (16.00%), moisture content (92.66%), total titratable acidity (0.77%), ascorbic acid content (17.49 mg/100g fruit) while the minimum (14.5 days), (14.67%), (90.66%), (0.68%), (9.75 mg/100g fruit) in optimum mature fruits, respectively. On the other hand, optimum mature fruits had higher dry matter content (14.78%), edible portion (67.77%), TSS (16.03%), pulp to peel ratio (2.56), total sugar content (13.5%) while these were minimum (12.57%), (65.16%), (14.43%), (2.37), (10.56%) in pre mature fruits, respectively. The fruits treated with 100 ppm NAA treatment showed the highest shelf life (22.83 days), pulp to peel ratio (2.94), total titratable acidity (0.67%), ascorbic acid content (16.78 mg/100g fruit pulp) and the lowest was in total sugar content (10.96%). Fruits treated with unperforated polythene bag gave the maximum edible portion (71.72%), moisture content (88.3%), and the minimum were in weight loss (3.42%), dry matter content (11.7%), TSS (14.68%). On the other hand, fruits with 5% tilt treatment showed the minimum total titratable acidity (0.58%) and ascorbic acid content (12.28 mg/100 g fruit pulp). Fruits with control represented the highest weight loss (19.135%), dry matter content (13.7%), total sugar content (12.75%) and the lowest were in shelf life (12.66 days), edible portion (60.098%), pulp to peel ratio (1.93). Among the treated and untreated fruits, unperforated polyethylene bag and 100 ppm NAA treatment exhibited better storage performance.J. Bangladesh Agril. Univ. 12(2): 251-260, December 2014

scholarly journals Predicting Key Grassland Characteristics from Hyperspectral Data

2021 ◽  
Vol 3 (2) ◽  
pp. 313-322
Author(s):  
Patrick Jackman ◽  
Thomas Lee ◽  
Michael French ◽  
Jayadeep Sasikumar ◽  
Patricia O’Byrne ◽  
...  
Keyword(s):  
Dry Matter ◽  
Sugar Content ◽  
Ground Truth ◽  
Matter Content ◽  
Hyperspectral Data ◽  
Chemistry Laboratory ◽  
Dry Matter Content ◽  
Least Squares Regression ◽  
Circular Spot ◽  
East Midlands

A series of experiments were conducted to measure and quantify the yield, dry matter content, sugars content, and nitrates content of grass intended for ensilement. These experiments took place in the East Midlands of Ireland during the Spring, Summer, and Autumn of 2019. A bespoke sensor rig was constructed; included in this rig was a hyperspectral radiometer that measured a broad spectrum of reflected natural light from a circular spot approximately 1.2 m in area. Grass inside a 50 cm square quadrat was manually collected from the centre of the circular spot for ground truth estimation of the grass qualities. Up to 25 spots were recorded and sampled each day. The radiometer readings for each spot were automatically recorded onto a laptop that controlled the sensor rig, and ground truth measurements were made either on-site or within 24 h in a wet chemistry laboratory. The collected data was used to build Partial Least Squares Regression (PLSR) predictive models of grass qualities from the hyperspectral dataset, and it was found that substantial relationships exist between the spectral reflectance from the grass and yield (r2 = 0.62), dry matter % (r2 = 0.54), sugar content (r2 = 0.54) and nitrates (r2 = 0.50). This shows that hyperspectral reflectance data contains substantial information about key grass qualities and can form part of a broader holistic data-driven approach to provide accurate and rapid predictions to farmers, agronomists, and agricultural contractors.

scholarly journals The effects of different methods of cultivation and plant spacing on the chemical composition of broccoli heads

2009 ◽  
Vol 21 (2) ◽  
pp. 25-34 ◽  
Author(s):  
Aneta Grabowska ◽  
Edward Kunicki ◽  
Andrzej Libik
Keyword(s):  
Dry Matter ◽  
Sugar Content ◽  
Soluble Sugar ◽  
Matter Content ◽  
First Year ◽  
Dry Matter Content ◽  
Fresh Matter ◽  
Nutritive Quality ◽  
The Mean ◽  
Direct Sowing

Abstract The aim of the present experiment was to assess the influence of the method of cultivation and spacing on the market and nutritive quality of ‘Lord F1’ broccoli heads. The experiment was conducted at the University of Agriculture in Krakow, Poland, in 2002-2004. The method of broccoli cultivation (direct sowing or transplanting, and spacing: 20, 30, 40 and 50 cm × 67.5 cm) had no clear influence on the dry matter content in the heads. The mean dry matter content in broccoli heads was 9.5%, and reducing sugar was 1.12% of fresh matter. In 2002 and 2004, transplanting resulted in an increase of soluble sugar content as compared to direct sowing. The element content in broccoli was dependent mainly on the vegetation season, but in many cases directly sown plants had more phosphorus, potassium, calcium, and magnesium. With the increase of spacing in rows the content of some elements (P, K, Ca, Mg) in broccoli heads rose in the first year of the experiment. The mean content of elements found in broccoli heads was as follows (in mg kg-1 of dry matter): phosphorus 6001, potassium 23447, calcium 3696, magnesium 1583, and iron 66.7.

scholarly journals Changes in the Dry Matter and Sugar Content of Nantes Type Carrots during Storage

2002 ◽  
Vol 8 (2) ◽  
Author(s):  
H. Némethy ◽  
M. Fehér
Keyword(s):  
Dry Matter ◽  
Sugar Content ◽  
Weather Conditions ◽  
Growing Season ◽  
Matter Content ◽  
Dry Matter Content ◽  
Chernozem Soil ◽  
Production Site ◽  
Year 2000

Changes in the dry matter and sugar content occurring during the winter storage of Nantes type carrot hybrids grown on soils of different quality were studied in 199912000 and 200012001. The dry matter content of the varieties tested depended on the production site and on the weather conditions prevailing in the growing season. The increase in the dry matter content during winter storage reached 6 to 7 per cent in the crop grown in a dry year and 1.5 to 2 per cent in a rainy year. The sugar content was lower in the rainy year (1999) and on brown sand (Szatymaz) than in the rather dry year (2000) and on chernozem soil with residual forest (Tordas), respectively. The increase in sugar content (1 to 5 per cent) measured at the end of storage was related to the season's weather conditions.

scholarly journals The effect of sugar substitution on model confectionary systems

2020 ◽  
Author(s):  
Anikó Kovács ◽  
Katalin Badakné Kerti ◽  
László Somogyi
Keyword(s):  
Dry Matter ◽  
Sugar Content ◽  
Matter Content ◽  
Dry Matter Content ◽  
Added Sugar ◽  
Texture Properties ◽  
Excessive Consumption ◽  
Dsc Curves

AbstractExcessive consumption of added sugar is associated with many health problems, for example obesity, type 2 diabetes, etc. Hence there is an urgent need for the product reformulation by total replacement or partial reduction of sugar in food industry. The aim of this research was to study the effect of sugar substitution (by stevia and xylitol) on model confectionary systems. We investigated differences in the texture properties, the viscosity and thermal properties of the blends. Based on our results, the sugar substitution affects the physical properties of the measured samples. The apparent viscosity and the texture properties were changed due to the different dry matter content in the samples. In the differential scanning calorimeter (DSC) curves the different melting of the samples were expressed according to the changes in sugar content. Further work is needed in this field to follow up the discovered changes in thermal behaviour of these mixtures.

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