scholarly journals Evaluation of ripening period, shelf-life, and physiological properties of Sobri (Musa cavendish) and Sagor (Musa oranta) bananas triggered by ethephon and calcium carbide

Food Research ◽  
2019 ◽  
Vol 4 (2) ◽  
pp. 407-412
Author(s):  
Beauty Akter ◽  
N. Talukder ◽  
L. Bari ◽  
Rabeta Mohd Salleh
Keyword(s):  
Shelf Life ◽  
Calcium Carbide ◽  
Natural Process ◽  
Sensorial Analysis ◽  
Ripening Period ◽  
Light Yellow ◽  
Physiological Properties ◽  
Peel Color ◽  
Yellow Color ◽  
Stalk Color

The current work emphasis on the influence of using natural and artificial (ethephon and calcium carbide) process on bananas by sensory observation. The objective of the study was to evaluate the ripening period, shelf-life and other physiological properties of bananas using the natural and the artificial method. Ethephon and calcium carbide with different concentrations, heat, and natural process were applied for the evaluation of two banana species. The result shows different shelf-life, ripening period, and physiological properties of both bananas which were monitored through the physical appearance and sensorial analysis. The ripening period and shelf-life were between 2-3.5 days in both bananas treated with ethephon. For calcium carbide treated banana, ripening period evaluated as 2-3 days for Sagor and 3-4 days for Sobri with same shelf-life duration approximately 2-3 days. Ripening period and Shelf-life for heat applied both bananas were about 4-5 and 3-4 days, respectively. Moreover, it is observed that naturally ripening process took 5-6 and 7-8 days for Sagor and Sobri bananas, respectively with the shelf-life of 5-6 days. Bananas (both) treated with ethephon exhibited attractive bright yellow color and stalk color was green for Sagor while it was yellow for Sobri bananas. Calcium carbide treated both bananas had same peel color with different flavor and stalk color. Heat applied both bananas found with same peel color like light yellow, with little flavor and green in stalk color. Overall, the effect of natural process is found to be better with respect to longer shelf-life approximately 5-6 days, attractive flavor, and soft texture than the artificial process. Among artificially ripened bananas the effect of heat process is better with respect to shelf-life around 3-4 days and application of ethephon process is better with respect to physiological properties.

P3386Angioscopic comparison between polymer-free biolimus A9-coated stent and durable polymer drug-eluting stent 10 months after the implantation

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
T Tsujimura ◽  
T Ishihara ◽  
O Iida ◽  
M Asai ◽  
M Masuda ◽  
...  
Keyword(s):  
De Novo ◽  
Drug Eluting Stent ◽  
Light Yellow ◽  
Yellow Color ◽  
Yellow Plaque ◽  
Durable Polymer ◽  
Biolimus A9 ◽  
Drug Eluting ◽  
Neointimal Coverage ◽  
Grade 3

Abstract Background Polymer-free biolimus A9-coated stent (DCS) has currently emerged as expected better arterial healing compared to durable polymer drug-eluting stent (DP-DES). However, superiority of DCS on arterial healing over DP-DES has not been well elucidated using intracoronary images. Methods This study examined 288 stents in 224 patients with de novo coronary artery lesions. We angioscopically compared 55 DCS from 35 patients with 233 DP-DES from 189 patients 10±2 months after the implantation. We assessed thrombus adhesion, which is a marker of incomplete re-endothelialization. Dominant neointimal coverage (NIC) grade, heterogeneity of NIC and maximum yellow color of plaque underneath the stent were also evaluated. Neointimal coverage was graded as follows: grade 0, stent struts exposed; grade 1, struts bulged into the lumen, although covered; grade 2, struts embedded by the neointima, but translucent; grade 3, struts fully embedded and invisible. NIC was judged as heterogeneous when differences in the NIC grade became apparent. Yellow plaque was graded as follows: grade 0, white; grade 1, light yellow; grade 2, yellow; grade 3, intensive yellow. Results Thrombus adhesion was similar between DCS and DP-DES (29% versus 23%, P=0.32). Dominant NIC was greater in DCS than in BP-DES (P<0.001), while NIC was more heterogeneous in DCS than in BP-DES (P=0.001, Figure). Maximum yellow color of stented segment was similar between DCS and DP-DES (P=0.09). Conclusion DCS provided similar thrombus adhesion to DP-DES, which suggested similar re-endothelialization 10 months after implantation. However, DCS showed thick and heterogeneous NIC compared to DP-DES. The specific feature of polymer-free and Biolimus A9 would cause the difference, and further investigation is necessary to evaluate the longer-term safety and efficacy. Acknowledgement/Funding None

scholarly journals Effects of mode and timing of calcium chloride application on tissue calcium concentration and acceptability of mango fruits

2021 ◽  
Vol 21 (103) ◽  
pp. 18552-18573
Author(s):  
Naphis Mokaya Bitange ◽  
◽  
GN Chemining’wa ◽  
JL Ambuko ◽  
WO Owino ◽  
...  
Keyword(s):  
Shelf Life ◽  
Calcium Chloride ◽  
Calcium Concentration ◽  
Beta Carotene ◽  
Soluble Solids ◽  
Ambient Conditions ◽  
Flesh Color ◽  
Flesh Firmness ◽  
Peel Color ◽  
Fruit Flavor

Mango (Mangifera indica L) production in Kenya directly supports approximately 200,000 farmers and many other beneficiaries. Despite this, its production suffers from post-harvest losses due to the fruits' short shelf life in ambient conditions. Calcium maintains cell integrity, strengthens the cell wall, membrane structure, and thus increases shelf life. A completely randomized block design with a split plot arrangement was used to compare the effect of spraying and immersion of ‘Van Dyke' mango fruits at maturity or 15 days later in calcium chloride at different concentrations (0.5%, 1%, 1.5%, or 0%) and times on the fruit ripening rate and organoleptic acceptance. The peel firmness (N), total soluble solids (0Brix), flesh color (Ho), beta carotene (mg/100ml), and carbon dioxide evolution (ml/kg/hr) of fruits were determined at time 0 and every two days for up to eight days in ambient conditions. Additionally, organoleptic characteristics, flesh firmness, calcium concentration (g/mg), and their correlations were determined. Fruits immersed in calcium chloride at maturity had higher retained peel firmness (10.6 N, 10.3 N), deeper flesh color (37.45, 36.78), lower total soluble solids (14, 13.8), a lower carbon dioxide evolution (30.7 ml/kg/hr), higher beta carotene and higher flesh calcium concentration than fruits exposed to other treatments. Fruits sprayed at maturity outperformed those sprayed 15 days later in the studied parameters. Flesh calcium content correlated positively with flesh firmness (r= 0.913, r= 0.852), flesh color (r= 0.828, r= 0.841), fruit aroma (r=0.8199, r=0.841), and negatively with skin shriveling (r=-0.778, r=-0.806) and fruit flavor (r=-0.811, r=-0.829). Flesh firmness correlated negatively with skin shriveling (r=-0.868, r=-0.788) and fruit flavor (r=-0.8869, r=-0.821), but positively with peel color (r=0.9115, r=0.856) and aroma (r=0.907, r=0.848). Skin shriveling was found to have a negative relationship with peel color (r=-0.944, r=-0.93) and aroma (r=-0.944, r=-0.938), but a positive relationship with fruit flavor (r=0.933, r=0.947). Peel color correlated positively with aroma (r=0.979, r=0.977) and negatively with fruit flavor (r=-0.962, r=-0.950), respectively. Despite the effectiveness of post-harvest calcium chloride immersion in extending fruit shelf life, optimal use is advised to avoid deteriorated pulp flavor and increased shriveling. More research is needed to determine how calcium chloride can be made available to the fruit while it is still attached to the tree.

scholarly journals Effect of heat treatment on the preservation of Chaenomeles speciosa (Sweet) Nakai

2020 ◽  
Vol 165 ◽  
pp. 01012
Author(s):  
Rong Huang ◽  
Luping Zhao ◽  
Xiaoli Wang ◽  
Zhaosheng Wang ◽  
You Li ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Weight Loss ◽  
Shelf Life ◽  
Hot Water ◽  
Preservation Technology ◽  
Physiological Properties ◽  
Hot Water Dipping

Heat treatment was used to extend the shelf life of postharvest Chaenomeles speciosa (Sweet) Nakai (C. speciosa), its effects on the quality and physiological properties of C. speciosa were studied. The results showed that heat treatment reduced the weight loss, inhibited the decline of titratable acids (TA), maintained a higher activity of peroxidase (POD) and catalase (CAT), compared to untreated C. speciosa. Treatment in hot water dipping at 50℃ for 2-4 min maintained the better quality of postharvest C. speciosa stored at 0℃ for 120 days, which indicated that heat treatment is an effective preservation technology to prolong the shelf life of C. speciosa.

scholarly journals Immobilization of Urease on DEAE-Cellulose Strips for One Step Urea Detection

2019 ◽  
Vol 55 (01) ◽  
pp. 024-027
Author(s):  
Arvind M. Kayastha
Keyword(s):  
Shelf Life ◽  
Protein Concentration ◽  
Deae Cellulose ◽  
Phenol Red ◽  
Light Yellow ◽  
Potential Applications ◽  
One Step ◽  
Suitable Product

AbstractUrease isolated from pigeonpeas was immobilized on 1 cm × 6 cm diethylaminoethyl (DEAE)-cellulose strips. The optimum immobilization (55% activity) was observed at 4°C, with a protein concentration of 1 mg per strip at pH 6.5. Immobilized strips stored at 4°C showed an increased shelf-life and there was no leaching of enzyme from the immobilized strips for 6 months. Enzyme could be eluted on application of 0.2 M KCl in buffer, which showed that the binding of the enzyme was tight on DEAE-cellulose strips. These strips when used along with dye, phenol red (coimmobilized) gave different shades from light yellow to dark magenta depending upon the concentration of urea. The ease of immobilization of urease on DEAE-cellulose strips and easy availability of pigeonpeas urease described in the present study makes it a suitable product for potential applications in urea diagnostics.

scholarly journals Impact of diabetes mellitus on the early-phase arterial healing after drug-eluting stent implantation

2020 ◽  
Vol 19 (1) ◽  
Author(s):  
Takayuki Ishihara ◽  
Yohei Sotomi ◽  
Takuya Tsujimura ◽  
Osamu Iida ◽  
Tomoaki Kobayashi ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Early Phase ◽  
Drug Eluting Stent ◽  
Color Grade ◽  
Light Yellow ◽  
Yellow Color ◽  
Coronary Angioscopy ◽  
Drug Eluting ◽  
Grade 3 ◽  
The Impact

Abstract Background Early arterial healing after drug-eluting stent (DES) implantation may enable short dual-antiplatelet therapy (DAPT) strategy. The impact of diabetes mellitus (DM) on this healing has not been elucidated. We used coronary angioscopy (CAS) to compare intravascular status of DM and non-DM patients in the early phase after DES implantation. Methods This study was a multicenter retrospective observational study. We analyzed CAS findings of 337 lesions from 270 patients evaluated 3–5 months after DES implantation. We divided the lesion into two groups: DM (n = 149) and non-DM (n = 188). We assessed neointimal coverage (NIC) grades (dominant, maximum and minimum), thrombus adhesion and maximum yellow color grade. NIC was graded as follows: grade 0, stent struts were not covered; grade 1, stent struts were covered by thin layer; grade 2, stent struts were buried under neointima. Yellow color was graded as grade 0, white; grade 1, light yellow; grade 2, yellow; grade 3, intensive yellow. Results Minimum NIC grade was significantly lower in DM than in non-DM groups (p = 0.002), whereas dominant and maximum NIC grades were similar between them (p = 0.59 and p = 0.94, respectively), as were thrombus adhesion (44.3% vs. 38.8%, p = 0.32) and maximum yellow color grade (p = 0.78). A multivariate analysis demonstrated that DM was an independent predictor of minimum NIC of grade 0 (odds ratio: 2.14, 95% confidence interval: 1.19–3.86, p = 0.011). Conclusions DM patients showed more uncovered struts than non-DM patients 3–5 months after DES implantation, suggesting that the recent ultra-short DAPT strategy might not be easily applied to DM patients.

Czochralski Crystal Growth of Zinc Oxide-Tellurium Oxide System

2005 ◽  
Vol 891 ◽  
Author(s):  
Jalal M. Nawash ◽  
Kelvin G. Lynn
Keyword(s):  
Single Crystal ◽  
Grown Crystal ◽  
Oxide System ◽  
High Resistivity ◽  
Czochralski Technique ◽  
Tellurium Oxide ◽  
Light Yellow ◽  
Yellow Color ◽  
Mole Percentage ◽  
Light Yellow Color

ABSTRACTCzochralski technique was employed in an attempt to grow a single crystal of the system ZnO-TeO2. A good quality grown crystal is expected to be transparent with a very light yellow color. The crystals exhibit a high resistivity of the order of 1013 Ω-cm. Different mole percentages have been tested for growth. Several attempts were performed to pull a single crystal. It was found that the best mole percentage of ZnO-TeO2 is 35.5:64.5. The pulled material grows uniformly, such that necking and conning are noticed. The pulled material contained multiple single crystals which were isolated and studied. Each one of them was transparent. Some properties will be presented. The pulled material of the 40:60 ZnO-TeO2 mole percentage returned four phases. Two of these phases are very uncommon.

scholarly journals Bactericidal and disinfective properties of disinfectant «GK-10»

2018 ◽  
Vol 20 (87) ◽  
pp. 3-7
Author(s):  
O.L. Tishyn ◽  
R.V. Khomiak ◽  
G.T. Kopijchuk ◽  
M.M. Danko ◽  
S.A. Ponomariova
Keyword(s):  
Cell Death ◽  
Animal Origin ◽  
Spore Form ◽  
E Coli ◽  
Gram Positive Bacteria ◽  
Light Yellow ◽  
Laboratory Facilities ◽  
Yellow Color ◽  
Bactericidal Properties ◽  
Light Yellow Color

The article presents the results of research on bactericidal properties of the new domestic disinfectant «GK-10», which is a transparent solution of light yellow color, without mechanical inclusions with a specific odor. It is well mixed with water. It is based on alkyl dimethylbenzyl ammonium chloride (QAC) and dodecylbispropylentriamine (1,3-prodadiene) (tertiary amines). Was found bactericidal dilution (BD), bactericidal concentration (BC), phenolic coefficient (FC) and protein index (PI). Thus, the most susceptible to the action of the disinfectant were were gram-negative bacteria E. coli, where cell death occurred at 10 and 30 minute exposures at concentrations of 0.19 and 0.14%, respectively. Due to the action of the disinfectant on the gram-positive bacteria S. aureus, cell death came at these exposures at concentrations 0.27 and 0.19%, respectively. The least susceptible to the action of the disinfectant were vegetative forms of B. subtilis, the death of these bacteria came at concentrations 0.37 and 0.27% at 10 and 30 minutes of exposure, respectively. Effects of disinfectant was over 5.38 and 2.74 times higher on microorganisms of E. coli and S. aureus, respectively, of the decontamination effect of phenol, and in the presence of protein, the activity of the disinfectant is reduced by 6.45 times. The efficiency of the disinfectant for the strains of microorganisms at the disinfestation of the test-object surfaces is determined. It has been established that for test cultures of E. coli and S. aureus 0.05–0.3% of disinfectant concentration is ineffective, and 0.5% its disinfectant concentration for disinfection of hard surfaces in preventive disinfection of premises for animals is insufficient for exposure in 120 minutes. For spore form B. subtilis 1.0% disinfectant concentration was ineffective. 1.0% concentration is effective for aseptic cleaning: slaughterhouses, processing shops, laboratory facilities, means of transporting products of animal origin, soaking clothes before washing, and also for treating surfaces of wood, metal and glazed tile at exposures of 60 minutes and more, and when spore forms of microorganisms, the working concentration of insoluble in disinfection of objects subject to veterinary control should be 3% and above. It has been proved that the disinfectant «GK-10» is effective at a concentration of 0.5% at exposure for 180 minutes and at a concentration of 1.0% at an exposure of 120 minutes for the sanation and preventive disinfection of premises for animals.

scholarly journals USE OF TIME TEMPERATURE MONITORS FOR PREDICTING SHELF LIFE OF FRESH FRUITS AND VEGETABLES

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1132F-1132
Author(s):  
Bill B. Dean ◽  
Eugene M. Kupferman
Keyword(s):  
Shelf Life ◽  
Fruits And Vegetables ◽  
Storage Conditions ◽  
Export Market ◽  
Long Distance ◽  
Use Of Time ◽  
Color Development ◽  
Yellow Color ◽  
Empirical Tests ◽  
Storage Temperatures

Shelf life of perishable commodities is a function of time by temperature effects on the composite kinetic reactions within each commodity. Empirical tests to approximate shelf life have limited value, particularly in long-distance shipment when less than ideal storage conditions occur, such as for the export market. Time temperature monitors (TTMs) have been developed for monitoring storage temperatures and predicting remaining shelf life. Kinetics curves for ripening of pears, yellow color development in broccoli and browning of mushrooms were compared to kinetics properties of available TTMs at 5, 10, and 20°C. Each commodity deteriorated or ripened at rates corresponding to a different TTM. At 20°C, broccoli kinetics were similar to TTM MC 60 or 67, pears to MC 74, and mushrooms MC 66. Customized TTMs and application of this technology will be discussed.

scholarly journals Alkaline instant noodles: use of alkaline salts to reduce sodium and assessment of calcium bioaccessibility

2021 ◽  
Vol 10 (2) ◽  
pp. e51210212778
Author(s):  
Ana Paula Rebellato ◽  
Priscila Ferreira Tavares ◽  
Guilherme Neves Trindade ◽  
Juliana A. Lima Pallone ◽  
Pedro H. Campelo ◽  
...  
Keyword(s):  
Calcium Carbonate ◽  
Low Cost ◽  
Calcium Content ◽  
Sodium Content ◽  
Promising Alternative ◽  
High Sodium ◽  
Light Yellow ◽  
Yellow Color ◽  
Light Yellow Color ◽  
Instant Noodles

Instant noodles originated in eastern nations and have been accepted due to its practicality and low cost. However, its high sodium content can lead to health problems. The present study aimed to reduce sodium and increase calcium levels in noodles. A control (N1: K2CO3+ Na2CO3) and three treatments with the addition of calcium carbonate in combination with alkaline salts such as potassium and sodium carbonates (N2: K2CO3+ CaCO3; N3: Na2CO3+ CaCO3; and N4: CaCO3) were studied. Two hydration methods were investigated, and the technological characterization and the calcium bioaccessibility of the different noodle formulations were determined. N4 did not fit into the alkaline noodle category due to its neutral pH.  N2 and N4 showed a sodium reduction of around 28% and a significant increase in calcium content, with higher bioaccessible calcium. Significant changes were observed for the noodles made with the addition of different alkaline salts, with a light-yellow color and better texture than the control, which can be a positive aspect, once products with reduced nutrients usually present differentiated coloring. Therefore, the use of calcium carbonate may be a promising alternative to increase Ca intake and to reduce the sodium content of instant noodles.

scholarly journals 221 Gibberellic Acid Application Timing Effects on Juice Yield and Peel Quality of `Hamlin' Oranges

HortScience ◽  
1999 ◽  
Vol 34 (3) ◽  
pp. 480B-480
Author(s):  
F.S. Davies ◽  
M.W. Fidelibusa ◽  
C.A. Campbell
Keyword(s):  
Gibberellic Acid ◽  
Late Summer ◽  
Optimal Time ◽  
Mature Trees ◽  
Application Timing ◽  
Puncture Resistance ◽  
Peel Color ◽  
Yellow Color ◽  
Juice Yield ◽  
Subsequent Loss

Gibberellic acid (GA) applied in late summer or fall delays subsequent loss of peel puncture resistance (PPR) and development of yellow peel color in many citrus cultivars. Our objective was to determine the optimal time to apply GA for increasing juice yield of `Hamlin' sweet orange [Citrus sinensis (L.) Osb.]. Mature trees on sour orange (Citrus aurantium L.) rootstock were sprayed with ≈24 L of a solution of GA (45 g a.i./ha) and organo-silicone surfactant (Silwet, 0.05%). Trees were sprayed on 26 Aug., 9 Sept., 2 Oct. (colorbreak), or 13 Oct. 1997, or nonsprayed (control). Peel puncture resistance, peel color, and juice yield were evaluated monthly between Dec. 1997 and Mar. 1998. Fruit from trees sprayed with GA had peels with higher PPR and less yellow color than fruit of control trees for most of the harvest season. The effect of GA on PPR and peel color lasted about 5 months. Juice yield was usually numerically greater for GA-treated fruit than for nontreated fruit. Fruit treated with GA at color break had significantly greater juice yield when harvested in late February than fruit from control trees. Thus, GA applied at color break appears to be the most effective time for enhancing peel quality and juice yield of `Hamlin' oranges.

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