Effect of Various Cultural Conditions on Total Sugar Content, Vitamin C Content and ^|^beta;-Amylase Activity of Daikon Radish Root (Raphanus sativus L.)

Banana is one of the tropical fruits that people like because it tastes good and contains good nutritional value that beneficial for health. The content of vitamin C and total sugar are an important character to complete the morphological characterization of banana accession that can be utilized by breeders in choosing accession as parent. The study aimed to determine the content of vitamin C and total sugar on 31 accessions of banana collection of Banana Germplasm Plants of Yogyakarta. The research was conducted at Banana Germplasm Plantation and Laboratory of Agricultural Technology Production of Gadjah Mada University, Yogyakarta from January to December 2016. The results indicated that 31 banana accessions showed their susceptibility to vitamin C content 60.42 + 39.22 mg / 100 g and total sugar 22.06 + 16.01%. High standard deviation values indicate the large diversity of banana accessions that were characterized, indicating that the accessions of each characterized banana were separate accessions of one another.

Download Full-text

Improving quality of dragon fruit (hylocereus costaricensis) syrup by processing with double jacket vacuum evaporator

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/924/1/012012 ◽

2021 ◽

Vol 924 (1) ◽

pp. 012012

Author(s):

B Susilo ◽

S M Sutan ◽

Y Hendrawan ◽

R Damayanti

Keyword(s):

Vitamin C ◽

Moisture Content ◽

Sugar Content ◽

Reducing Sugar ◽

Total Sugar ◽

Evaporation Process ◽

Nutritional Content ◽

Total Sugar Content ◽

Dragon Fruit

Abstract Red dragon fruit (Hylocereus costaricensis) is a famous fruit because of its high nutritional content. Although the product diversification of red dragon fruit is quite a lot, however, this product has limited information as a syrup product. The evaporation process for making syrup at the traditional level is usually carried out at high temperatures which results in the high destruction of nutritional content and reduces the quality of syrup. The study of the evaporation process at low temperature and low pressure using a double jacket vacuum evaporator for manufacturing red dragon fruit syrup was conducted in this research in order to improve product quality. The aims of this study are to evaluate the effect of temperature process and vacuum pressure on the quality of red dragon fruit (H.costaricensis) syrup using a double jacket vacuum evaporator and to know the optimum temperature process and vacuum pressure to producing red dragon fruit sirup with higher content of vitamin C. The double jacket evaporator operates at a pressure lower than atmospheric pressure so that there were 9 treatment combinations. The result showed the temperature gave a highly significant effect, especially on vitamin C. It also gave on moisture content and reducing sugar. The temperature gave no significant effect on total sugar content. Whereas, the pressure gave a significant on moisture content, but not gave a significant on vitamin C, reducing sugar content and total sugar content. However, the best treatment for optimum vitamin C is 50 0C/-60 cmHg with 8.75 mg/100 ml.

Download Full-text

Retention of Nutritional Quality of Solar Dried Carrot (Daucus carota L.) During Storage

Bangladesh Journal of Scientific and Industrial Research ◽

10.3329/bjsir.v45i4.7381 ◽

1970 ◽

Vol 45 (4) ◽

pp. 359-362

Author(s):

MM Rahman ◽

G Kibria ◽

QR Karim ◽

SA Khanom ◽

L Islam ◽

...

Keyword(s):

Vitamin C ◽

Daucus Carota ◽

Sugar Content ◽

Storage Period ◽

Total Sugar ◽

The Body ◽

Physical Parameters ◽

Rehydration Ratio ◽

Carotene Content ◽

Total Sugar Content

Carrot (Daucus carota L.) is a root crop. It belongs to the umbelliferae family. Carrot contains the highest amount of carotene among all the fruits and vegetables which the body converts to vitamin-A. Carrot was dried in a solar drier and packed in polyethylene bags, heat sealed and kept in tin container at ambient temperature for 8 (eight) months. Moisture, reducing sugar, total sugar, starch, protein, fat, vitamin-C, ß-carotene content, energy value and reconstitution time of the product were analysed during its storage period at the interval of 2 months. The initial nutrient of fresh carrot and solar dried carrot for the above parameters were analysed. During the storage period protein, starch and total sugar content decreased slightly, vitamin-C decreased remarkably, â-carotene content decreased very slowly and moisture content increased gradually. Sensory properties such as appearance, colour, flavour, texture, taste and physical parameters such as over-all shrinkage ratio, drying ratio, rehydration ratio of the product were also assessed. By assessing all the parameters it is revealed that the product is acceptable for 6 (Six) months. Key words: Carrot; Solar drying; Storage behaviour; Physical parameters; Nutrients DOI: 10.3329/bjsir.v45i4.7381 Bangladesh J. Sci. Ind. Res. 45(4), 359-362, 2010

Download Full-text

Phytochemical and Antioxidant Properties of Fresh Fruits and Some Traditional Products of Wild Grown Raspberry (Rubus idaeus L.)

Notulae Botanicae Horti Agrobotanici Cluj-Napoca ◽

10.15835/nbha47311465 ◽

2019 ◽

Vol 47 (3) ◽

Author(s):

Bojana VELJKOVIĆ ◽

Violeta JAKOVLJEVIĆ ◽

Milan STANKOVIĆ ◽

Zora DAJIĆ-STEVANOVIĆ

Keyword(s):

Antioxidant Activity ◽

Vitamin C ◽

Total Phenolics ◽

Sugar Content ◽

Total Sugar ◽

Rubus Idaeus ◽

Fresh Fruit ◽

Antioxidant Systems ◽

Total Anthocyanin ◽

Total Sugar Content

The current study investigated and compared phytochemical and antioxidant activity of fresh fruit and some traditional products of Rubus idaeus grown in mountain region of Serbia. The total organic acid, total sugar content, total phenolics, flavonoids, tannins, anthocyanins and vitamin C were evaluated. The antioxidant activities were evaluated using two antioxidant systems 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2′-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS). The fresh fruit contained highest amount of vitamin C (46.62 mg AA g-1) and total organic acids (882.22 mg CA g-1). The sweet preserve had highest content of total phenolics (200.83 mg GA g-1), flavonoids (12.85 mg RU g-1) and tannins (39.11 mg g-1). The juice had the highest total anthocyanin content (107.22 µg mL-1) and total sugar content (25 °Brix). The best antioxidant activity in ABTS assay had juice (IC50 = 4.87 µmol TE g-1), followed by sweet preserve (IC50 = 5.14 µmol TE g-1), almost identical to standard gallic acid. In the DPPH free radical scavenging assay, sweet fruit preserve showed significant better antioxidant activity (IC50 = 41.27 µg mL-1) compared to juice (IC50 = 106.07 µg mL-1) and fresh fruit (IC50 = 294.79 µg mL-1). Our results indicated promising perspectives for usage of R. idaeus fresh fruits and traditional products studied with considerable levels of vitamin C, bioactive compounds and antioxidant activity. ********* In press - Online First. Article has been peer reviewed, accepted for publication and published online without pagination. It will receive pagination when the issue will be ready for publishing as a complete number (Volume 47, Issue 3, 2019). The article is searchable and citable by Digital Object Identifier (DOI). DOI link will become active after the article will be included in the complete issue. *********

Download Full-text

EFFECT OF FUSARIUM NYGAMAI INFECTION ON THE CHEMICAL COMPOSITION OF FLOUR FROM TWO YAM VARIETIES

JOURNAL OF ADVANCES IN CHEMISTRY ◽

10.24297/jac.v12i1.842 ◽

2015 ◽

Vol 12 (1) ◽

pp. 3881-3887

Author(s):

Omodamiro Rachel Majekodunmi ◽

Ojimelukwe P.C ◽

Asiedu R ◽

Etudaiye H.A

Keyword(s):

Vitamin C ◽

Sugar Content ◽

Nutrient Composition ◽

Total Sugar ◽

Tannin Content ◽

C Protein ◽

Nutritional Values ◽

Total Sugar Content ◽

Storage Losses ◽

Yam Flour

Yams (Dioscorea spp) are among the oldest food crops. It is estimated that after six months of storage up to 56% of the crop is lost to rot. In Nigeria, fresh yam tubers are used for production of Elubo (yam flour) for preparation of amala, as it is called among the Yoruba in Western Nigeria, and akwunaji in the east of the River Niger. Many researchershave emphasized the importance of microbial rotting in causing storage losses. This study evaluated the effect of yam rot on the nutritional values of Fusarium infected yam tubers.Tubers from two yam (Dioscorea rotundata Poir.)varieties-Nwopoko and TDr95/19177-were infected with Fusarium nygamai pure culture and stored for 12 weeks, after which the tubers were used to produce yam flour and were analyzed for their nutrient composition comprising: dry matter/ moisture content, ash, total sugar, starch, amylose, vitamin C, protein and tannins. Wholesome yams of the same varieties were also used to produce yam flour and equally evaluated for the same nutrients. Infection with Fusariumnygamai led to a significant reduction (p<0.05) in the nutrient composition of the infected yam flour compared with those ofwholesome samples. Vitamin C content reduced from 41.10 to 27.26 (mg/100g) in variety Nwopoko and 36.30 to 30.53 (mg/100g); in variety TDr95/19177. Corresponding values for protein content was from 5.05 to 4.60% and 4.93 to 4.62%; Ash Content from 1.32 to 1.30% and 1.36 to 1.24%; Total Sugar Content from 5.34 to 5.20% and 5.21 to 5.02%; Starch 78.71 to 77.61 and 89.28 to 81.53%; Amylose from 29.95 to 28.87% and 30.01 to 27.95%. However, an increase in the tannin content – (1.84 and 1.94 mg/g) as against (0.31 and 0.26 mg/g) in Nwopoko and TDr 95/19177 varieties respectively was observed. The increase in the tannin content implies an increase in the antinutrient composition. The tendency to produce Elubo used for preparation of amala with rotten yam (possibly Fusarium infected) should be discouraged.

Download Full-text

Mid and near Infrared Study of Carbohydrates by Canonical Correlation Analysis

Journal of Near Infrared Spectroscopy ◽

10.1255/jnirs.13 ◽

1993 ◽

Vol 1 (2) ◽

pp. 99-108 ◽

Cited By ~ 13

Author(s):

P. Robert ◽

M.F. Devaux ◽

A. Qannari ◽

M. Safar

Keyword(s):

Correlation Analysis ◽

Infrared Spectra ◽

Canonical Correlation ◽

Near Infrared ◽

Sugar Content ◽

Infrared Region ◽

Total Sugar ◽

Mid Infrared ◽

Total Sugar Content ◽

Near Infrared Spectra

Multivariate data treatments were applied to mid and near infrared spectra of glucose, fructose and sucrose solutions in order to specify near infrared frequencies that characterise each carbohydrate. As a first step, the mid and near infrared regions were separately studied by performing Principal Component Analyses. While glucose, fructose and sucrose could be clearly identified on the similarity maps derived from the mid infrared spectra, only the total sugar content of the solutions was observed when using the near infrared region. Characteristic wavelengths of the total sugar content were found at 2118, 2270 and 2324 nm. In a second step, the mid and near infrared regions were jointly studied by a Canonical Correlation Analysis. As the assignments of frequencies are generally well known in the mid infrared region, it should be useful to study the relationships between the two infrared regions. Thus, the canonical patterns obtained from the near infrared spectra revealed wavelengths that characterised each carbohydrate. The OH and CH combination bands were observed at: 2088 and 2332 nm for glucose, 2134 and 2252 nm for fructose, 2058 and 2278 nm for sucrose. Although a precise assignment of the near infrared bands to chemical groups within the molecules was not possible, the present work showed that near infrared spectra of carbohydrates presented specific features.

Download Full-text

Measurement of Total Sugar Content of Residue from Bioenergy Pig Excreta in Marsh-Gas Sinks

Asian Journal of Chemistry ◽

10.14233/ajchem.2013.15456 ◽

2013 ◽

Vol 25 (16) ◽

pp. 9421-9422 ◽

Cited By ~ 1

Author(s):

G. Peng ◽

E.V. Davis ◽

L.X. Wang ◽

C.W. Zhang

Keyword(s):

Sugar Content ◽

Total Sugar ◽

Total Sugar Content

Download Full-text

Nutritive value of tomatillo fruit (Physalis ixocarpa Brot.)

Acta Societatis Botanicorum Poloniae ◽

10.5586/asbp.1988.049 ◽

2014 ◽

Vol 57 (4) ◽

pp. 507-521 ◽

Cited By ~ 2

Author(s):

Joanna Ostrzycka ◽

Marcin Horbowicz ◽

Włodzimierz Dobrzański ◽

Leszek S. Jankiewicz ◽

Jan Borkowski

Keyword(s):

Chemical Composition ◽

Oxalic Acid ◽

Dry Matter ◽

Nutritive Value ◽

Sugar Content ◽

Dehydroascorbic Acid ◽

Total Sugar ◽

Ripe Fruit ◽

Total Sugar Content ◽

The Given

Tomatillo is widely cultivated in Mexico but is little known in other countries. The chemical composition of fruit from field grown plants was investigated during several vegetative seasons. Tomatillo contained a relatively high percentage of dry matter (7-10%) and extract (6.6-7.4%). Its potassium content was lower than that of tomato growing in the same conditions. The content of iron was higher, and that of other elements was comparable, depending on the conditions during the given year. The total sugar content amounted to 2.8-5.7%, depending on the selected population. The percentage of glucose and fructose decreased during ripening and that of saccharose increased. The content of pectic substances was similar as in tomato but the proportions of particular fractions was different. Tomatillo contained more acids than tomato, and showed an especially high citric and malic acid content. The latter decreased drastically during ripening. The content of oxalic acid was 11-18 mg 100 g-1 in ripe fruit and up to 54 mg in unripe. The vitamin C content depended on the selected population and amounted to 8-21 mg 100 g-1, dehydroascorbic acid prevailing. The content of vitamin PP was 0.8-1.3 mg 100 g-1.

Download Full-text