scholarly journals Effect of biostimulant application and long-term storage on the nutritional value of carrot

2019 ◽  
Vol 37 (4) ◽  
pp. 451-457 ◽  
Author(s):  
Elżbieta Wszelaczyńska ◽  
Małgorzata Szczepanek ◽  
Jarosław Pobereżny ◽  
Maciej J Kazula
Keyword(s):  
Vitamin C ◽  
Nutritional Value ◽  
Field Experiments ◽  
Foliar Application ◽  
Plant Protection ◽  
Block Design ◽  
Storage Period ◽  
Vegetation Period ◽  
Total Carotenoids ◽  
Total Sugars

ABSTRACT The nutritional value of carrot is determined by the content of total sugars and monosaccharides, carotenoids and vitamins, including vitamin C, in its roots. In 2009-2011, field experiments were carried out concerning the effect of biostimulating preparations applied during the carrot vegetation period on selected nutrients of its roots (total sugars, monosaccharides, carotenoids and vitamin C). Two biostimulants were foliarly applied in doses of 2 or 3 L ha-1 on various dates. Kelpak SL and Asahi SL: one, two or three applications; where, second and third applied at 2-week interval, additionally Kelpak SL: one application at 4-leaf phase, followed by additional application after 4 weeks. The field study was conducted in a randomized block design with four replications. The treatments of plant protection from diseases and pests complied with carrot requirements. The subject of the research was carrot of the Karotan cultivar. The content of selected components in carrot roots was determined directly after harvest and after six months of storage in the storage chamber with controlled temperature and relative air humidity. The foliar application of Kelpak SL in a single dose (2 L ha-1) at 4-leaf development phase resulted in the significant increase of total sugars, reducing sugars, total carotenoids and vitamin C. A six-month storage period resulted in a decrease of total sugars by 5% and ascorbic acid by 16.8% compared to nutritional values measured right after harvest.

scholarly journals The effect of weed management method on weeds infestation, yield, storage ability and nutritional value of leek (Allium porrum L.)

2021 ◽  
Vol 61 (4) ◽  
pp. 297-307
Keyword(s):  
Dry Matter ◽  
Nutritional Value ◽  
Field Experiments ◽  
Storage Period ◽  
Allium Porrum ◽  
Total Sugars ◽  
Growth Stimulator ◽  
Soluble Phenols ◽  
Hand Weeding ◽  
The Impact

In the years 2012–2014, at The National Institute of Horticultural Research in Skierniewice, research was carried out on determining the impact of various methods of weeding on leek yield, its storage stability and nutritional value after harvest and storage. In the field experiments the following methods were compared: mechanical treatments, mechanical treatments + growth stimulator, soil mulching with polypropylene and black foil and hand weeding. After harvest the leek were storage at the temperature 0°C for 124–150 days depending on the year and after the storage it was sorted as: marketable leeks and plants with diseases symptoms and rotten plants, and also leek’s natural weight loss was determined. After harvest and after storage, the content of dry matter, total sugars and soluble phenols in leeks was determined. The highest marketable yield immediately after harvest was obtained from plants mulched with black materials. After storage, the most marketable leeks were obtained from the control and hand weeded during cultivation. Chemical composition of leek was analysed after harvest and after the storage period. After harvest the highest yield from leek grown in black mulch were obtained and after the storage from control and hand weeding. Chemical analyses showed that the highest dry matter and total sugars contents were found in leek weeded by hand, and after storage mulched with black and polypropylene foil. After harvest, the highest content of soluble phenols was recorded in leek weeded mechanically and treated additionally with a growth stimulator, and after the storage – in mechanically weeded leeks.

Monthly variation and impact of pollution on the nutritional value of Moringa oleifera (Lam.) Leaves

2017 ◽  
Vol 6 (10) ◽  
pp. 5535
Author(s):  
Sachin Umesh Dubey ◽  
Madhu Kanta Kapoor
Keyword(s):  
Vitamin C ◽  
Nutritional Value ◽  
Moringa Oleifera ◽  
Reducing Sugars ◽  
Essential Amino Acids ◽  
Monthly Variation ◽  
Vehicular Pollution ◽  
Total Sugars ◽  
Urban Sewage ◽  
Moringa Oleifera Lam

Moringa oleifera Lam., commonly found tree in sub-Himalayan tracts of India, Pakistan, Bangladesh and Afghanistan has a high nutrition value. The leaves, flowers and immature pods of Moringa are used as a vegetable in many countries. The leaves are highly nutritious and medicinal in nature. They are a rich source of iron, calcium, vitamin A, vitamin C, proteins, and essential amino acids. Hence Moringa leaves can be a good source of protein for the vegetarians and the under-nourished population. Present investigation deals with the study of monthly variation in the nutritional value of Moringa leaves from the month of June 2015 to January 2016. Impact of urban sewage pollution and roadside vehicular pollution on the amount of reducing and total sugars, chlorophylls (a, b and total), proteins, vitamin-C and pH of the leaves, was also studied. Results revealed that the highest amounts of reducing sugars, total sugars, chlorophyll b and total chlorophyll during October 2015 whereas proteins, chlorophyll a, vitamin C and pH were highest during January 2016. Leaf samples collected from all the study sites exhibited minimum amounts of reducing sugars, chlorophylls (a, b and total) and pH during July 2015 whereas total sugars were lowest during December 2015. Proteins and vitamin C values were lowest during August and June 2015 respectively. Sewage and vehicular pollution showed an adverse effect on the nutritional contents of Moringa oleifera leaves. Of the two polluted sites, samples from near the sewage flow showed higher impact.

scholarly journals Tingkat Penerimaan panelis Terhadap Yoghurt Dengan Perlakuan Lama Fermentasi, Jenis susu dan Lama penyimpanan yang Berbeda

2019 ◽  
Vol 4 (3) ◽  
pp. 65-74
Author(s):  
Tursina Tursina ◽  
Irfan Irfan ◽  
Sri Haryani
Keyword(s):  
Nutritional Value ◽  
Storage Time ◽  
Lactose Intolerance ◽  
Block Design ◽  
Storage Period ◽  
Cow Milk ◽  
Fermentation Time ◽  
The Third ◽  
Randomized Block Design ◽  
Good For

Abstrak: Susu didefinisikan sebagai salah satu bahan pangan bernutrisi tinggi yang baik berperan sebagai asupan penting untuk, pertumbuhan kesehatan dan kecerdasan. Walaupun susu memiliki nilai gizi yang sangat baik namun untuk sebagian orang konsumsi dapat menimbulkan masalah berupa terjadinya lactose intolerance yaitu ketidakmampuan tubuh untuk mencerna laktosa yang terdapat didalam susu. Hal ini dapat diatasi dengan mengubah laktosa menjadi glukosa dan galaktosa dengan cara fermentasi. Salah satu produk fermentasi berbasis susu adalah yoghurt. Penelitian ini bertujuan untuk mempelajari pengaruh  lama fermentasi dan jenis susu yang digunakan dalam pembuatan yoghurt terhadap sensori yoghurt selama masa penyimpanan. Penelitian ini dilakukan menggunakan Rancangan Acak Kelompok (RAK) yang terdiri dari 3 faktor, faktor pertama yaitu lama fermentasi (F) yang terdiri dari 2 taraf, yaitu: F1 = 10 jam, F2 = 16 jam. Faktor kedua yaitu jenis susu yang digunakan yang terdiri dari 2 taraf, yaitu: S1 = susu sapi dan S2 = susu kambing. Faktor ketiga yaitu lama penyimpanan yang terdiri dari 3 taraf, yaitu: P1 = 0 minggu, P2 = 2 minggu, P3 = 4 minggu. Analisis yang dilakukan adalah uji organoleptik secara hedonik meliputi atribut warna, aroma, rasa dan tekstur. Hasil uji organoleptik (hedonik) menunjukkan bahwa secara umum panelis lebih menyukai yoghurt perlakuan jenis susu sapi dengan fermentasi 10 jam dan lama penyimpanan 3 hari (minggu ke-0). Abstract: Milk is determined as one of the high nutritious kind of foods that are good for important consumption, health and intelligence growth. Because milk has a very good nutritional value for most people who can spend problems because of lactose intolerance which is the body's inability to digest lactose in milk.This problem can be overcome by converting lactose to glucose and galactose by fermentation. One of the milk-based fermented products is yogurt. This study aims to investiage the effect of fermentation time and the type of milk used in making yogurt on the sensory yogurt during the storage period. This study was conducted using a Randomized Block Design (RBD) consisting of 3 factors, the first factor was the duration of fermentation (F): F1 = 10 hours, F2 = 16 hours. the second factor was the type of milk used which consists of twolevels, namely: S1 = cow's milk and S2 = goat's milk. The third factor is the storage time which we: P1 = 0 weeks, P2 = 2 weeks, P3 = 4 weeks. the analysis carried out were a hedonic test covering attributes of color, aroma, taste and texture. The organoleptic (hedonic) test result showed that in general all panelists preferred yogurt which was made by cow milk with 10 hours fermentation and 3 days of storage time (week 0).Abstract: Milk is determined as one of the high nutritious kind of foods that are good for important consumption, health and intelligence growth. Because milk has a very good nutritional value for most people who can spend problems because of lactose intolerance which is the body's inability to digest lactose in milk.This problem can be overcome by converting lactose to glucose and galactose by fermentation. One of the milk-based fermented products is yogurt. This study aims to investiage the effect of fermentation time and the type of milk used in making yogurt on the sensory yogurt during the storage period. This study was conducted using a Randomized Block Design (RBD) consisting of 3 factors, the first factor was the duration of fermentation (F): F1 = 10 hours, F2 = 16 hours. The second factor was the type of milk used which consists of two levels, namely: S1 = cow's milk and S2 = goat's milk. The third factor is the storage time which we: P1 = 0 weeks, P2 = 2 weeks, P3 = 4 weeks. The analysis carried out were a hedonic test covering attributes of color, aroma, taste and texture. The organoleptic (hedonic) test results showed that in general all panelists preferred yogurt which was made by cow milk with 10 hours fermentation and 3 days of storage time (week 0).

scholarly journals POSTHARVEST QUALITY AND CHILLING INJURY OF “SUCCARY” POMEGRANATES AS AFFECTED BY DIFFERENT PACKAGING TYPES

2019 ◽  
pp. 1-11
Keyword(s):  
Vitamin C ◽  
Fruit Juice ◽  
Chilling Injury ◽  
Storage Period ◽  
Fruit Weight ◽  
Postharvest Quality ◽  
Harvest Time ◽  
Total Sugars ◽  
Poly Vinyl Chloride ◽  
Cling Film

Fully ripe 'Succary' pomegranate fruits were harvested from a private orchard in Ismailia, Egypt in 2015 & 2016 seasons. The fruits were packed in: 1- freely packed fruits (control) 2- sealed fresh bags of high ethylene absorption (HEA) 3- perforated polyethylene )PPE( 4- polyethylene (PE) film (stretchable cling film) 5- commercial PVC (poly vinyl chloride) pages. All packaging treatments were stored at 5 ºC and 90 – 95% RH for 12 weeks. Samples were taken every 2 weeks followed by 4 days at 20˚C. Fruit weight (g) rind thickness (mm), aril /fruit (%), juice content %, juice colour, SSC, acidity%, total sugars%, total phenols% and vitamin C were evaluated at harvest time. Chilling injury of the fruit was reduced by all packaging types. Changes in acidity, and SSC of the packed fruits were lower than that of freely packed fruits (control) during storage period. Cold storage at 5 °C with packaging treatments would be the best for preserving the freshness and vitamin C, increasing antioxidant activity, reducing chilling injury and maintaining fruit quality. Consequently, the fruits were more commercially acceptable.

scholarly journals Effects of microsite variation on growth and adaptive traits in a beech provenance trial

2011 ◽  
Vol 57 (No. 5) ◽  
pp. 192-199 ◽  
Author(s):  
D. Gömöry ◽  
L. Paule ◽  
E. Gömöryová
Keyword(s):  
Field Experiments ◽  
Block Design ◽  
Vegetation Period ◽  
Tree Breeding ◽  
Frost Damage ◽  
Analysis Of Covariance ◽  
Phenotypic Traits ◽  
Provenance Trial ◽  
Ordinary Point ◽  
Individual Trees

ABSTRACT: The effects of the within-trial spatial variation of environmental factors on phenotypic traits were studied in the Slovak plot of the international beech provenance trial coordinated by BFH Grosshansdorf with 32 provenances, established under a randomized complete block design with three adjacent blocks. Five indicators of soil properties (soil moisture, bulk density and pH) and microclimate (average daily temperature and temperature amplitude) were assessed at 96 points distributed over a 10 × 10 m grid and their values for the positions of individual trees were estimated by ordinary point kriging. The evaluation of phenotypic variation (height, diameter, Julian days of spring flushing and autumn leaf discoloration, vegetation period length, late frost damage) using a common two-way analysis of variance showed a significant provenance × block interaction effect indicating the heterogeneity of blocks. Analysis of covariance using single-tree kriging estimates of environmental variables as covariates showed that in addition to provenance, all phenotypic traits were significantly affected by microsite, especially by temperature fluctuation. Employing methods incorporating the spatial component in the evaluation of tree breeding field experiments is advocated.

scholarly journals Increasing of selenium content and qualitative parameters in tomato (Lycopersicon esculentum Mill.) after its foliar application

10.5219/1097 ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 351-358 ◽  
Author(s):  
Alena Andrejiová ◽  
Alžbeta Hegedűsová ◽  
Samuel Adamec ◽  
Ondrej Hegedűs ◽  
Ivana Mezeyová
Keyword(s):  
Vitamin C ◽  
Foliar Application ◽  
Botanical Garden ◽  
Sodium Selenate ◽  
Selenium Content ◽  
Total Carotenoids ◽  
Total Polyphenol ◽  
Tomato Fruits ◽  
Negative Effect ◽  
Positive Effect

The effect of genotype and selenium foliar biofortification in the form of an aqueous solution of sodium selenate on the content of total carotenoids, vitamin C, total polyphenols and selenium content in the tomato fruits was studied.  Field experiment was held in the Botanical garden of the Slovak University of Agriculture in 2016. Seven determinant varieties of tomato in the two variants were observed. The results of experiments show that treatment of plants with the dose of Se concentration (150 g Se.ha-1) at the flowering stage significantly increased the total Se content in the in tomato fruits. Foliar application of selenium had a positive effect on the increase of total polyphenol. The influence of Se biofortification on the content of vitamin C and carotenoids was not detected. Selenium foliar fertilization in dosage 150 g.ha-1 is suitable way of tomato fruits enriching in polyphenols, without negative effect on other antioxidants content.

scholarly journals Response of zinc application on growth, zinc content and grain yield of rice genotypes and correlation between zinc content and yield attributes of rice genotypes

2018 ◽  
Author(s):  
Venkatesh Dore ◽  
R.V. Koti ◽  
K.K. Math
Keyword(s):  
Grain Yield ◽  
Field Experiments ◽  
Agricultural Research ◽  
Foliar Application ◽  
Block Design ◽  
Foliar Spray ◽  
Zinc Content ◽  
Research Station ◽  
Yield Attributes ◽  
Rice Genotypes

Field experiments were conducted during kharif 2013 and 2014 at Agricultural Research Station, Mugad, University of Agricultural Sciences (UAS), Dharwad (Karnataka), to determine the response of zinc applicationon on growth, zinc content and grain yield of rice genotypes and also studied correlation between yield and zinc content. The experiment was comprised of 20 genotypes and three treatments viz., T1: Control (no zinc); T2: Soil application of ZnSO4 (20 kg ha-1) T3– Foliar Spray of ZnSO4 @ 0.5% at 50% flowering, laid out in factorial randomized block design with two replications. The data revealed that application of ZnSO4 recorded significantly higher plant height (85.9 cm), leaf area (764.5 cm-2 plant-1), number of tillers (95.4 m-1), total dry weight (26.1 g plant-1), panicle weight(15.3 g plant-1), number of panicles (81.6 m-1) and grain yield(3966 kg ha-1) over the foliar application of Zn and control . However number of grains panicle-1 (97.8 panicle-1), test weight (23.7 g), shoot and seed zinc content (15.9 and 21.2 ppm, respectively) were increased with foliar application of Zn. Correlation studies classified the genotypes as high seed zinc content (> 21 ppm) and low seed zinc content genotypes ( less than 21 ppm). High and low seed zinc content genotypes showed negative correlation with yield and yield attributes. However, shoot zinc content was positively correlated with yield.

scholarly journals Analisa Kimia Bakpia Kering Substitusi Tepung Kulit Buah Naga

2020 ◽  
Vol 13 (01) ◽  
pp. 15-23
Author(s):  
Amelia Nirmalawaty ◽  
Anak Agung Putu Sri Mahayani
Keyword(s):  
Vitamin C ◽  
Nutritional Value ◽  
Block Design ◽  
High Heat ◽  
Ash Content ◽  
Randomized Block Design ◽  
Dragon Fruit ◽  
Carbohydrate Levels ◽  
And Control ◽  
Sufficient Food

The potential of red dragon fruit peels both in terms of antioxidant activity and as sufficient food coloring promising. On the other hand antioxidants, one of which is vitamin C, is very susceptible to high heat.  This study aims to determine the content of proximate, fiber and vitamin C from dry bakpia substitution of  dragon fruit peels flour. A randomized block design with 4 replications was selected in this study, while the treatment consisted from 3 levels of dragon fruit peels flour substitution, namely 1%, 2%, 3% and control (0%). The results showed substitution of dragon fruit peels flour has no effect on water content, protein, fat, fiber and vitamin C dry bakpia. The 3% substitution of dragon fruit peels flour produces lower carbohydrate levels and significantly different with control, 1% and 2%.  The ash content of 3% substitution of dragon fruit peels flour is higher and than significantly different with control and 1% but not significantly different with 2% . The conclusion was  substitution of dragon fruit peels flour can be applied to 1- 2% of  flour need to increase its nutritional value.   Keywords: dragon fruit peels flour, dried bakpia, proximate, fiber, vitamin C

scholarly journals Biochemical Indicators and Nitrates in Potatoes during Storage: Modern Cultivation Techniques

2019 ◽  
Vol 49 (1) ◽  
pp. 127-134
Author(s):  
Алексей Бутов ◽  
Alexey Butov ◽  
Анна Мандрова ◽  
Anna Mandrova
Keyword(s):  
Vitamin C ◽  
Drip Irrigation ◽  
Dry Matter ◽  
Field Experiments ◽  
Control Sample ◽  
Storage Period ◽  
Mineral Fertilizers ◽  
Potassium Fertilizer ◽  
Biochemical Indicators ◽  
High Doses

It featured the dynamics of the biochemical parameters of potato tubers in the autumn and winter storage peri- od. The samples were gathered in 2011–2013 during field experiments. The experiments included 12 various doses and ratios of mineral fertilizers under drip irrigation. The soil was leached chernozem (Voronezh region). During 3 storage periods (Sep- tember–April), the content of vitamin C in moderately fertilized tubers decreased by 3.0–3.2 times. The content of vitamin C in heavily fertilized tubers decreased by 3.3–3.4 times. The loss of dry matter and starch at small and moderate doses of fertilizers N30-60P90-120K60-90 amounted to 1.4–1.5 and 1.0–1.1%. The loss of dry matter and starch from high doses of fertilizers N120-150P180-210K150-180 equaled 1.6–2.0 and 1.4–1.7%. The content of nitrates in the tubers gradually decreased during stor- age, and the greatest decrease occurred in April. For moderately fertilized tubers, the residual amount decreased by 3.2–3.3 times by April. For heavily fertilized tubers, it decreased by 2.5–2.9 times against 3.7 times in the control sample. Enhanced nitrogen and nitrogen-potassium fertilizer worsened all the biochemical indicators of the potatoes. In order to maintain optimal biochemical pa- rameters of tubers during storage, the proportion of phosphorus (kg/ha of active substance) had to be increased by 1.5–1.7 times as related to nitrogen. The share of potassium was increased by 1.3 times. The best results (yield = 37.8 t/ha, optimal biochemical pa- rameters, concentration of nitrates = 36.6 mg/%) were achieved by drip irrigation and application of N90P150K120 kg/ha of active ingredient. A dose of N120P180K150, (yield – 41.5 t/ha) was found beneficial, provided the potatoes were filled separately from the total pile. Such potatoes have to be sold at the end of the storage period, when the concentration of nitrates in tubers becomes 2.5– 2.9 times lower.

scholarly journals Effect of storage conditions, preservative levels and packing materials on ascorbic acid juice of mandarin cv. Nagpur Santra

2020 ◽  
pp. 38-41
Author(s):  
Zaki Ahmad Faizi
Keyword(s):  
Ascorbic Acid ◽  
Vitamin C ◽  
Cold Storage ◽  
Nutritional Value ◽  
Storage Time ◽  
Storage Period ◽  
Storage Conditions ◽  
Packaging Materials ◽  
Glass Bottle ◽  
Pet Bottles

The research was done with the aim of considering vitamin C affectability under different storage conditions and packages at the post-harvest center of Mpkv, Rahuri Agricultural University in India. Juice of Nagpur Santra in three packaging materials glass bottles of 200 mL (B1), pet bottles of 200 mL (B2) and standy pouches (B3) which were added sodium benzoate as preservative substance in three levels 150 ppm (P1), 250 ppm (P2) and 350 ppm (P3), were kept in roam temperature range 19 to 28°C (S1) and cold storage 5±2°C (S2) were used for vitamin C consideration at days 30, 60, 90, 120, 150 and 180 of storage period. Results showed that ascorbic acid of Nagpur Santra juice was significantly influenced by storage conditions, preservative levels, packaging materials and their -1 interactions. The ascorbic acid (AA) of fresh juice was 43.46 mg 100 mL . During storage AA was found to be decreased in all the treatment combinations. However, the rate was faster under ambient condition (S1) as compared to cold storage (S2) condition. The minimum decrease in AA of juice was found in high preservative level when packed in glass bottle and stored in cold storage. The maximum AA was recorded in S2P3B1 (35.21 mg 100 mL-1) followed by S2P3B2 (34.23 mg 100 mL-1) at 180 days of storage. The minimum AA was recorded in S1P1B3 (23.69 mg 100 mL-1) followed by S1P1B2 (24.60 mg 100 mL-1) at 90 days of storage period and afterward it spoiled. It can be said due to high quantity of AA in Nagpur Santra even after long period of storage time the level of AA of mentioned fruit juice was at acceptable level from view point of nutritional value.

Sign in / Sign up

Export Citation Format

Share Document