scholarly journals The parameters of homemade jams after storage

2014 ◽  
pp. 39-42
Author(s):  
Gerda Diósi ◽  
Péter Sipos
Keyword(s):  
Nutritional Value ◽  
Quality Parameters ◽  
Matter Content ◽  
Dry Matter Content ◽  
Chemical Parameters ◽  
Added Sugar ◽  
Market Positioning ◽  
Specific Product ◽  
Plum Variety ◽  
Plum Varieties

Nowadays producing jams is considered a traditional way of plum processing in Hungary. Plum jams without added sugar can be stored This research aimed to analytically determine which quality parameters of the jams and to what extent they change during storage. Furthermore, this study intended to find out whether a concious consumer can presume any difference between varieties or the year of harvest, or wheather a one-time customer should suspect differences in quality parameters of the different products. This study focused on those differences or alterations in the parameters that occur in the jams made from several different plum varieties produced in different years. I analyzed the classic chemical parameters (dry matter content and ash content) and physiologically important nutritional components (phenolic and flavonoids antioxidants and vitamin C). In this research I used jams which were produced from 6 varieties grown in 2009 (President, Tophit, Bluefre, Elena, Presenta, Stanley), 4 varieties from 2010 (President, Bluefre, Elena, Presenta) and 6 varieties from 2011 (President, Tophit, Bluefre, Elena, Presenta, Stanley). Jams were produced with traditional technology in cauldrons without added sugar. Jars were placed into a relatively dark and cool place and were stored there until the analysis. Having regard to the results, when consumers choose between the different products they also choose quality since the processed plum variety, and the year of production/processing determine the nutritional value of the specific product. This could be used for market positioning and promotion of the product, however further research is needed to gain more information from the differences that derive from the varieties, year of harvest or other factors. This way fruit and jam producers could turn these informations into market advantage.

scholarly journals Use of New BTH Derivative as Supplement or Substitute of Standard Fungicidal Program in Strawberry Cultivation

Agronomy ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1031
Author(s):  
Maciej Spychalski ◽  
Rafal Kukawka ◽  
Włodzimierz Krzesiński ◽  
Tomasz Spiżewski ◽  
Monika Michalecka ◽  
...  
Keyword(s):  
Plant Resistance ◽  
Positive Impact ◽  
Quality Parameters ◽  
Nutritional Composition ◽  
Matter Content ◽  
Dry Matter Content ◽  
Yield And Quality ◽  
Amide Derivative ◽  
Combined Use ◽  
The Impact

Triggering the plant resistance induction phenomenon by chemical compounds, for example acibenzolar-S-methyl ester, has been known and described in scientific literature. Other benzothadiazole derivatives have been also described; however, their properties have not been sufficiently studied. The tested substance, N-methyl-N-methoxyamide-7-carboxybenzo(1.2.3)thiadiazole (BTHWA), is an amide derivative of benzothiadiazole, showing a stimulating effect on plant growth, apart from its plant resistance inducing activity. This article presents the impact of BTHWA, used solo and in the program with fungicides, on the strawberry plants development, fruits health, yield, and quality parameters of the crop. The results show that the combined use of BTHWA and fungicides had a positive impact on the plants health and fruit health and nutraceutical and nutritional composition of compounds when compared to the results obtained when strawberries were treated only with the BTHWA or the fungicide. As a result of BTHWA use, the partitioning of assimilates has changed, which directly translated into the results of the conducted experiments. A reduction in the respiration of the fruit during storage was also observed, possibly due to a reduced disease infestation and a lower dry matter content in the fruit. A correlation between the parameters determined during the experiment was found. The BTHWA mode of action was evidenced to be beneficial to strawberry plants and fruit.

scholarly journals Near-infrared Spectroscopy for Rapid Estimation of Dry Matter Content in Whole Unpeeled Potato Tubers

2012 ◽  
Vol 1 (4) ◽  
pp. 55 ◽  
Author(s):  
Trygve Helgerud ◽  
Vegard H. Segtnan ◽  
Jens P. Wold ◽  
Simon Ballance ◽  
Svein H. Knutsen ◽  
...  
Keyword(s):  
Dry Matter ◽  
Near Infrared ◽  
Reference Method ◽  
Quality Parameters ◽  
Matter Content ◽  
Dry Matter Content ◽  
Potato Tubers ◽  
External Reference ◽  
Explained Variance ◽  
Processed Potatoes

<p>The dry matter is one of the main quality parameters of raw and processed potatoes. In the present study, the potential of utilizing high throughput commercially available NIR interactance systems for dry matter determination in whole unpeeled potato tubers is investigated. The performance of a 2D NIR interactance instrument was compared with that of a 1D NIR interactance instrument and a traditional underwater weight apparatus. A total of 114 tubers were assessed individually with both of the NIR instruments (760-1040 nm), the underwater weight and an external reference method (freeze drying). The 1D interactance instrument obtained better prediction results than what the 2D instrument could achieve (R<sup>2</sup>=0.95, RMSECV=0.91, and R<sup>2</sup>=0.83, RMSECV=1.65, respectively). The underwater weight obtained the highest explained variance (R<sup>2</sup>=0.97), but the estimation was biased by approximately 1.5% (by weight). The poorer prediction performance of the 2D NIR interactance system can be partly explained by the lower penetration depths of the light compared to the 1D NIR interactance systems.</p>

scholarly journals Nutritional value of tifton 85 bermudagrass at two cutting heights and different times of storage

2017 ◽  
Vol 38 (4) ◽  
pp. 2129
Author(s):  
Samantha Mariana Monteiro Sunahara ◽  
Marcela Abbado Neres ◽  
Jaqueline Rocha Wobeto Sarto ◽  
Caroline Daiane Nath ◽  
Kácia Carine Scheidt ◽  
...  
Keyword(s):  
Dry Matter ◽  
Nutritional Value ◽  
Ground Level ◽  
Matter Content ◽  
Fiber Content ◽  
Neutral Detergent Fiber ◽  
In Vitro Digestibility ◽  
Dry Matter Content ◽  
Cutting Height

The goal of this study was to assess the dehydration curve and nutritional value of Tifton 85 bermudagrass at two cutting heights from ground level (4 and 8 cm) during 120 days of storage in a closed shed. The dehydration curve was determined using samples from the entire plant at eight different times. The experimental design consisted of randomized blocks with plots subdivided per times and five replicates. The second step consisted of assessing the nutritional value of the stored Tifton 85 bermudagrass in randomized blocks with plots subdivided per times and two treatments per plot: cutting height of four and eight centimeters from the ground, and five different times for the subplots, with five replicates. Dehydration of Tifton 85 bermudagrass at the two heights occurred in 48 hours, considered an ideal time for hay drying. The dry matter content responded quadratically to the time of storage of the two heights, only differing during baling and after 120 days of storage. Crude protein content had a quadratic behavior in the two cutting heights, with the smallest value after 30 days of storage (107.0 g kg-1) and the largest after 90 days (147.8 g kg-1) in the cutting height of eight centimeters. The ether extract exhibited a quadratic behavior in the two cutting heights, only differing after 90 days of storage. The neutral detergent fiber content had linear positive response according to the time of storage, with no difference between the cutting heights. For the neutral detergent fiber content in the two cutting heights, the quadratic regression model was the best fit to the data, differing between the heights after 30 and 60 days of storage. In vitro dry matter digestibility and in vitro cell wall digestibility values of the stored hay were lower than the values obtained at the time of cutting. Cutting performed at four centimeters from the ground was the most suitable for hay production due to higher dry matter production and nutritional value without difference between bailing treatments. Hay storage caused undesirable changes in the nutritional value, especially in fiber content and in vitro digestibility.

scholarly journals EVALUATION OF NUTRITIONAL VALUE OF GRAIN-HAYLAGE FROM LUPIN, OAT AND SUDAN GRASS

2020 ◽  
Vol 2020 (1) ◽  
pp. 63-69
Author(s):  
Valentina Ruckaya ◽  
Alexander Sorokin ◽  
Elena Afonina ◽  
Natal'ya ZAYCEVA
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Nutritional Value ◽  
Single Species ◽  
Matter Content ◽  
Metabolic Energy ◽  
White Lupin ◽  
Dry Matter Content ◽  
Sudan Grass ◽  
Sowing Period

The average data for 2018–2019 are presented for yield, dry matter content in grain-haylage mass, nutritional value of test grain-haylage samples produced from plant mass of white lupin, oat and Sudan grass from single and mixed cenosis of different sowing times. The grain-haylage mass was harvested in the phase of brilliantly ripening lupin bean, milky-waxy ripeness of oats and the end of flowering of the Sudan grass. It’s revealed that variants of the second sowing date — 2 decade of May — have the best yield of grain-haylage mass and its dry matter content. The yield of grain-haylage mass in the best variants of the second sowing period exceeded by 7–8 t/ha. According to the nutritional value of grain silage samples (the content of metabolic energy, crude protein, crude ash and carotene), the best results were obtained in most variants of the first sowing period. In content of the metabolic energy and crude protein of 1 kg of dry matter of grain-haylage, the best were variants of the single-species cenosis of lupine and its mixture with oats of the first sowing period. Variants of single-species sowing of lupine and Sudan grass were distinguished by the content of carotene.

COMPARISON OF GRAIN YIELD AND WHOLE-PLANT SILAGE PRODUCTION OF RECOMMENDED CORN HYBRIDS

1983 ◽  
Vol 63 (3) ◽  
pp. 601-609 ◽  
Author(s):  
M. R. VATTIKONDA ◽  
R. B. HUNTER
Keyword(s):  
Grain Yield ◽  
Dry Matter ◽  
Lignin Content ◽  
Quality Parameters ◽  
Matter Content ◽  
Dry Matter Content ◽  
Whole Plant ◽  
Silage Production ◽  
The Relationship

A 2-yr study was conducted at Elora and Brucefield, Ont. to examine the relationship between grain yield following grain physiological maturity and whole-plant dry matter (DM) yield and quality determined at the stage desirable for ensiling. Quality parameters analyzed include in vitro dry matter digestibility (IVD) of the stover, IVD of the whole plant, stover lignin content and stover protein content. There was a significant linear relationship between the performance of hybrids for grain yield production and their yield for silage production. However, the relationship was not complete enough to permit reliable selection of hybrids for silage production based on grain yield performance (coefficients of determination were 0.23 and 0.25 for Elora and Brucefield, respectively). Grain dry matter content, however, provided a satisfactory estimate of whole-plant maturity for silage production. Coefficients of determination between grain DM content and whole-plant DM content were 0.71 and 0.53 for Elora and Brucefield, respectively. There was considerable variation among hybrids for lignin content and IVD of stover. Differences were much less for whole-plant IVD. The findings of this study support the need for separate evaluation trials for corn grown for whole-plant silage production as opposed to grain production.Key words: Zea mays, corn silage, grain yield, hybrid performance

scholarly journals The effect of sunburn damage on the fruit quality parameters of apple (Malus domestica cv. Idared)

2005 ◽  
pp. 55-64
Author(s):  
Lejla Budai ◽  
József Racskó ◽  
Zoltán Szabó ◽  
Miklós Soltész ◽  
Ervin Farkas ◽  
...  
Keyword(s):  
Water Content ◽  
Fruit Quality ◽  
Tissue Damage ◽  
Dry Matter ◽  
Quality Parameters ◽  
Apple Fruit ◽  
Matter Content ◽  
Dry Matter Content ◽  
Flesh Firmness ◽  
Epidermal Tissue

In the present study the authors investigated the effect of sunburn injury on fruit quality parameters (cover colour, depth of tissue damage, fruit flesh firmness, dry matter content) of apple.The symptoms of sunburn injury appeared as concentric rings, differing in colour from each other and the cover colour. This can be connected with the ratio of the injury. The authors observed the following colours on the fruit surface (from the epicentre of spots on the surface of the fruit) dark brown (strongly damaged), light brown (moderately damaged), pale red transition (weakly damaged), red surface cover colour (not damaged).Sunburn of apple fruits is a surface injury caused by solar radiation, heat and low relative humidity. In the initial phase, a light corky layer, golden or bronze discolouration and injuries of the epidermal tissue appear on the surface exposed to radiation. Thus, it detracts from the fruit’s appearance, but in most of the cases it would not cause serious damages in the epidermal tissue. The depth of tissue damage is not considerable, its values are between 1.5-2.0 mm in general. It is commonly known, that tissue structure of the apple fruit is not homogeneous. Accordingly, the degree of injury shows some differences under the different parts of the fruit surface.On the basis of the flesh firmness studies, it can be stated that the flesh firmness of the damaged parts increases due to the sunburn effect. This is due to the fact that the damaged plant cells die, the water content of the tissue decreases and it hardens. However, due to this reduction in the water content the dry matter content will increase.

scholarly journals Organic versus integrated apple growing: II. differences in fruit quality parameters

2009 ◽  
Vol 15 (4) ◽  
Author(s):  
P. T. Nagy ◽  
Z. Szabó ◽  
J. Nyéki ◽  
I. Gonda ◽  
I. J. Holb
Keyword(s):  
Production System ◽  
Dry Matter ◽  
Quality Parameters ◽  
Measured Data ◽  
Matter Content ◽  
Research Station ◽  
Dry Matter Content ◽  
Nutrients Uptake ◽  
Good Agreement

The aim our study was to establish whether significant differences in nutrients uptake and quality of fruit existbetween organic and integrated grown apples. The study was performed at the orchard Fruit Research Station, University of Debrecen, at Debrecen-Pallag during 2002–2004. Diameter (mm), weight (g), firmness (N/cm2), dry matter (%) and Vitamin C in fruit were determined. Diameter data showed that the size of apples strongly depended on cultivars and organic apples were larger than integrated ones. Moreover, the effect of year and species strongly affected the apple diameter, size and weight. Measured data of firmness were good agreement in data of diameter and weight. Larger fruits have lower values of firmness due to the structure of fruit flesh. Dry matter content of apples varied between 14.66 and 18.07 in integrated, and 12.87 and 17.29 in organic apples according to cultivars. Values were affected by years and cultivars. From results it was evident that the dry matter content of apples affected by production system. It was lower in organic samples than integrated ones.Vitamin C content of apples was stronger affected by species and years than production system.

scholarly journals Nutritional values of traditional open-pollinated melon (Cucumis melo L.) and watermelon (Citrullus lanatus [Thumb]) varieties

2007 ◽  
Vol 13 (2) ◽  
Author(s):  
Cs. Szamosi ◽  
H. Némethy-Uzoni ◽  
G. Balázs ◽  
É. Stefanovits-Bányai
Keyword(s):  
Cucumis Melo ◽  
Citrullus Lanatus ◽  
Titratable Acidity ◽  
Quality Parameters ◽  
Matter Content ◽  
Soluble Solids ◽  
Internal Quality ◽  
Total Phenol Content ◽  
Dry Matter Content ◽  
Cucumis Melo L

The aim of our experiments was to investigate the internal quality parameters of some old melon and watermelon landraces or varieties whether they have any desirable characteristics. Measurements were carried out using 8 different types of melon (Cucumis melo L.) and 8 accessions of watermelon (Citrullus lanatus [Thumb]), which were self pollinated under greenhouse conditions. Besides the determination of dry matter content; soluble solids, titratable acidity of the fruit juices, investigation of carbohydrates, total phenol content was measured by spectrophotometer. Total antioxidant capacities were determined spectrophotometrically using the FRAP method. We found some accesions both among melon and watermelon varieties, which could be characterized by outstanding inner content.

Near-infrared spectroscopy on combine harvesters to measure maize grain dry matter content and quality parameters

2006 ◽  
Vol 125 (6) ◽  
pp. 591-595 ◽  
Author(s):  
J. M. Montes ◽  
H. F. Utz ◽  
W. Schipprack ◽  
B. Kusterer ◽  
J. Muminovic ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Dry Matter ◽  
Near Infrared ◽  
Quality Parameters ◽  
Matter Content ◽  
Dry Matter Content ◽  
Maize Grain ◽  
Combine Harvesters

scholarly journals PRODUTIVIDADE E QUALIDADE DE RAÍZES DA MANDIOQUINHA-SALSA EM DIFERENTES NÍVEIS DE ADUBAÇÃO NPK

2018 ◽  
Vol 14 (3) ◽  
pp. 194-203
Author(s):  
Adalton Mazetti Fernandes ◽  
Emerson Loli Garcia ◽  
Magali Leonel ◽  
Lydia Helena da Silva de Oliveira Mota
Keyword(s):  
Nutritional Quality ◽  
Dry Matter ◽  
Nutritional Value ◽  
Matter Content ◽  
Dry Matter Content ◽  
Storage Roots ◽  
Marketable Yield ◽  
Root Size ◽  
Npk Fertilization

The storage roots of arracacha have high nutritional value, being rich in carbohydrates, minerals, vitamins A and C, and starch of high digestibility. However, in this crop one of the decisive factors for the production of roots with higher nutritional value is the balanced fertilization. The aim of this study was to evaluate the yield and nutritional quality of storage roots of arracacha, grown at increasing levels of NPK fertilization. The experiment was conducted in the randomized blocks design, with eight replications. The treatments consisted of three NPK levels (AD0 = unfertilized cultivation, AD1 = cultivation with 50% of recommended fertilization, and AD2 = cultivation with 100% ofrecommended fertilization). It was observedthat higher levels of NPK fertilization increase the number, size and marketable yield of storage roots of arracachacrop. NPK fertilization also increases the size and contentsof K, Mg, and Mn of storage roots, without interfering with the pulp pH and contentsof protein, Ca, Cu, and Fe. However, when the increase in root size is not accompanied by an increase in dry matter content, the starch, P, and Zn contents of the roots reduce with increasing levels of NPK fertilization.

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