• Title/Summary/Keyword: salt content

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Comparison of Quality Characteristics of Salted Muskmelon with Deep Seawater Salt, Sun-dried and Purified Salts (해양심층수염, 천일염 및 정제염을 이용한 참외절임시 품질특성 비교)

  • 이기동;김숙경;김정옥;김미림
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.32 no.6
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    • pp.840-846
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    • 2003
  • Physiochemical and sensory properties of muskmelon pickles were investigated under salting condition using deep seawater salt, sun-dried salt and purified salt. The changes of weight, shrinkage rate salinity and pH of muskmelon during salting time were almost nothing shown. Turbidity of pickle juice was the highest in salt solution using sun-dried salt and was almost nothing shown in deep seawater salt and purified salt. Solid content of pickle juice was higher in pickle juice using sun-dried salt than deep seawater salt and purified salt. The calcium content of muskmelon salted by deep seawater salt and sun-dried salt were increased to 4.3 times and 3.7 times, respectively. Hardness became a little higher on muskmelon using deed seawater salt ann sun dried salt than purified salt. In organoleptic result, color, flavor, taste, texture and overall palatability of muskmelon salted by deep seawater salt became higher in other salt solution (sun-friend salt and purified salt).

The Study on Salt Injury and Carbonation of Reinforced-Concrete (철근콘크리트의 염해와 중성화 피해 사례 연구)

  • Kim, Dong-Hun;Lim, Nam-Gi;Lee, Sang-Beam
    • Journal of the Korea Institute of Building Construction
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    • v.2 no.2
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    • pp.165-172
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    • 2002
  • A reinforced concrete building neighboring in Pusan or Ulsan where is directly exposed to salt water contrasting with other in land areas contains much salt content percolated from the outside that the high salt content percolates and diffuses through the inside of reinforced concrete; therefore, an immovable tunic surrounding it begins to be destroyed and eroded with high speed. At the time, the cross-sectional area and volume expansion of re-bar reinforcing result in being cracks make a rapid progress gradually until they appear in the surface of the one, the phenomenon such as being a thin layer or falling off the part of it causes a lowering of its durability and might collapse the concrete construction. So far, we've investigated into salt content of reinforced concrete constructions neighboring in a seaside district and damage by carbonation, and we came to a conclusion as follows: $\circled1$ Under the oceanic circumstance a concrete construction is influenced by sea water directly that contains much amount of salt content contrasting with other constructions on inland areas. $\circled2$ Because of chloride penetration the carbonation of reinforced concrete made a rapid progress until more than the covering thickness of re-bar. $\circled3$ An old reinforced concrete building which has been piled up salt injury and proceeding the carbonation of its cross-sectional area. $\circled4$ According to rapidly cracking from the inside to surface of reiforced concrete, the phenomenon of being a thin layer or falling off the part of reinforced concrete results in a lowering of durability and shortening the life-time of concrete construction itself.

Changes in Physicochemical Characteristics of Apple Pre-Treated with Sugar and Salt for Manufacturing Apple Jangachi (사과장아찌 제조를 위한 전처리공정 중 절임원에 따른 사과의 이화학적 특성변화)

  • Oh, Chul-Hwan
    • Culinary science and hospitality research
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    • v.23 no.8
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    • pp.98-105
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    • 2017
  • The purpose of this study was to investigate changes in physicochemical properties of apples pre-treated differently with salt and sugar for apple Jangachi. When salt was used, moisture content was decreased by 28.41% to 57.67% at 24 hours and maintained an average 56.92% after 24 hours. However, when sugar was used, moisture content decreased steadily to 41.14% (60h). The pH of the apple pre-treated with salt decreased from pH 4.42 to pH 3.63 at 12 hours. However, in the case of apples pre-treated with sugar, pH decreased from pH 4.52 to pH 4.19 after 48 hours, but was not statistically significant. Conversely, total acidity of apple pre-treated with salt increased from 11.46% to 0.35% during 72 hours. But total acidity of apple pre-treated with sugar decreased to 0.11% at 24 hours and maintained. Sugar content of apple pre-treated with salt increased to 33.1% at 12 hours and maintained. Conversely, in case of sugar pre-treatment, sugar content of apple pre-treated with sugar increased steadily to 45.12% at 72 hours. Salinity of apple pre-treated with salt increased sharply to 15.74% during 24 hours. Lightness ($L^*$) of apple pre-treated sugar was not different from the control group. But apple pre-treated salt decreased slightly. Yellowness ($b^*$) was higher than the control group regardless of pre-treatment group. Sensory evaluation revealed that sugar pre-treatment apples were highly evaluated for flavor, taste, chewiness and overall acceptance.

Effects of Salt and Alkaline Reagent on Rheological Properties of Instant Noodle Flour Differing in Protein Content (소금과 알칼리제가 단백질 함량이 다른 라면 밀가루의 리올로지 성질에 미치는 영향)

  • Chung, Gu-Sik;Kim, Sung-Kon
    • Korean Journal of Food Science and Technology
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    • v.23 no.2
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    • pp.192-199
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    • 1991
  • The rheological properties of various flour blends of HRW-WW and DNS-WW having protein contents of $9.12{\sim}9.78%$ in the presence or absence of salt and alkaline reagent (an equal mixture of$Na_2CO_3\;and\;K_2CO_3$) were studied. The farinograph absorptions of HRW-WW and DNS-WW blends was increased by 1% and 0.6%, respectively, with increasing protein content by 0.33%. Salt (0.17%) decreased the absorption by 1% regardless protein contents. Alkaline reagent (0.17%) or a combination of salt and alkaline reagent had no effect on absorption of flours, indicating that the effect of salt on decreasing absorption is masked by alkaline reagent. The protein content of the flour in the presence or absence of salt, alkaline reagent or both showed a highly positive correlation with all reference points of farinograph and extensograph, but the peak viscosity of amylograph was negatively correlated with protein content only in the presence of salt, alkaline reagent or both.

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Differences between Estimated and Analyzed Contents of Sodium and Potassium in the Salt-Restricted Diet (저염식단의 나트륨과 칼륨 함량의 계산치와 정량치 비교)

  • 김을상;조금호;박미아
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.25 no.3
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    • pp.406-414
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    • 1996
  • This study was undertaken to evaluate estimated and analyzed contents of sodium and potassium in the salt-restricted diet using "Food exchange sheet fro control of protein, sodium and potassium" for renal disease patients. Average food intake per day in the salt-restricted diet was 2, 241.2$\pm$68.4g, and water content of meals per day was 2, 082.7$\pm$144.3g including 297.7$\pm$91.1g of metabolic water from protein, fat and carbohydrate. Fried food showed higher weight change than that of the other kinds of food during cooking. Estimated and analyzed content of sodium were 656.4$\pm$273.2mg, 675.7$\pm$195.3mg, respectively ; those of potassium were 2, 198.3$\pm$37.3mg, 2, 142.3$\pm$162.4mg, respectively. Fried squid showed the lowest content of analyzed sodium and potassium compared with the estimated contents. The highest content of sodium was honeyed juice with apple, whereas the highest content of potassium was Mulkimchi. There was also no significant differences between analyzed and estimated content of sodium, as in case of potassium(p<0.05). Side dish and main dish made great contribution to sodium contents and the side dish and dessert were major source for potassium.potassium.

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Emerging Innovations to Reduce the Salt Content in Cheese; Effects of Salt on Flavor, Texture, and Shelf Life of Cheese; and Current Salt Usage: A Review

  • Bae, Inhyu;Park, Jong-Hyun;Choi, Hee-Young;Jung, Hoo-Kil
    • Food Science of Animal Resources
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    • v.37 no.6
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    • pp.793-798
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    • 2017
  • Salt is an essential ingredient for cheese production, and it influences various aspects of cheese, including the shelf life, enzyme activity, flavor, casein hydration, and microbial proliferation during ripening. Several consumers avoid cheese with high salt content, mainly due to health problems such as hypertension, cardiovascular disease (CVD), stroke, and heart attacks. Salt has been commonly used for several purposes in cheese production, including for obtaining the required flavor and texture, for its preservative properties, and as a taste enhancer. However, salt usage has been opposed by the public and governmental bodies, who have been advised by health authorities that salt should be reduced or avoided in cheese for healthier life. However, salt replacement or reduction in cheese manufacturing requires formulation of intensive strategies. This review provides information about several strategies and innovations for reduction and replacement of salt in cheese manufacturing without seriously affecting the quality, microbial safety, and sensory properties of cheeses.

Effects of Salt Concentration and Drying Time on the Quality Characteristics of Pork Jerky during Dehydration

  • Yang, Han-Sul;Kang, Sung-Won;Joo, Seon-Tea;Choi, Sung-Gil
    • Food Science of Animal Resources
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    • v.32 no.3
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    • pp.285-292
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    • 2012
  • This study was conducted in order to evaluate the effects of brine pre-soaking at different concentrations and drying time on the quality characteristics of pork jerky. The physicochemical properties of pork jerky including final moisture content, water activity ($a_w$), shear force, microstructure, and thiobarbituric acid reactive substance (TBARS) values were investigated. The sensory attributes of pork jerky were evaluated and used as parameters for determining the optimum drying condition. The sliced pork samples were pre-soaked at salt concentrations ranging from 0 to 10% for 3 h and then dried at $70^{\circ}C$ for up to 10 h. The pre-soaked samples in the salt solution showed higher final moisture content than the control sample after drying for 10 h. The final moisture content of pork jerky increased with increasing salt concentrations. On the other hand, the water activity with regards to the pre-soaked samples in a 10% salt solution showed the lowest value for up to 8 h drying. The shear force values of pork jerky decreased with increasing salt concentration while the TBARS values of the samples increased with increasing salt concentrations. Sensory evaluation suggested that the color, flavor, juiciness, and tenderness of the pork jerky samples were improved by pre-soaking in a 2% salt solution and the highest likeability score of pork jerky among the samples were obtained by pre-soaking in a 2% salt solution prior to drying.

Effect of Platycodon grandiflorum Fermentation with Salt on Fermentation Characteristics, Microbial Change and Anti-obesity Activity (소금 첨가에 따른 도라지 발효 특성과 미생물 변화 및 항비만 효능 평가)

  • Shin, Na Rae;Lim, Sokyoung;Kim, Hojun
    • Journal of Korean Medicine for Obesity Research
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    • v.18 no.2
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    • pp.64-73
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    • 2018
  • Objectives: This study investigated the effect on microbial ecology, fermentation characteristics and anti-obesity of Platycodon grandiflorum (PG) fermentation with salt. Methods: PG was fermented for four weeks with 2.5% salt and the characteristics of fermented PG were performed by measuring pH, total sugar content, viable bacteria number and microbial profiling. Also, we measured total polyphenol, flavonoid and the percent of inhibition of lipase activity and lipid accumulation. Results: Salt added to PG for fermentation had an effect on pH, total sugar, total and the number of lactic acid bacteria. Total sugar and pH were reduced and number of total and lactic acid bacteria were increased after fermentation. The majority of bacteria for fermentation were Lactobacillus plantarum, Leuconostoc psedomesenteroides and Lactococcus lactis subspecies lactis regardless of salt addition. However, microbial compositions were altered by added salt and additional bacteria including Weissella koreensis, W. viridescens, Lactobacillus sakei and Lactobacillus cuvatus were found in fermented PG with salt. Total flavonoid was increased in fermented PG and lipid accumulation on HepG2 cells treated with fermented PG was reduced regardless of salt addition. Moreover, fermented PG without salt suppressed lipase activity. Conclusions: Addition of salt for PG fermentation had influence on fermentation characteristics including pH and sugar content as well as number of bacteria and microbial composition. In addition, fermented PG showed anti-obesity effect by increasing flavonoid content and inhibition of lipase activity and lipid accumulation.

Inabenfide-Induced Alleviation of Salt Stress in Rice as Linked to Changes in Salicylic Acid Content and Catalase Activity

  • Sawada, Hiroko;Kim, Dea-Wook;Kobayashi, Katsuichiro;Shim, Ie-Sung
    • Journal of Crop Science and Biotechnology
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    • v.10 no.1
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    • pp.39-44
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    • 2007
  • The effect of inabenfide was investigated in rice seedlings subjected to salt stress in relation to changes in chlorophyll fluorescence(${\Delta}F/Fm'$), lipid peroxidation, salicylic acid(SA) content, and catalase(CAT) activity. A reduction in shoot growth of rice seedlings by 120 mM NaCl treatment was significantly alleviated by pretreatment with 30 ${\mu}M$ inabenfide. Sodium ion content was not affected by pretreatment with inabenfide, suggesting that alleviation was not due to a reduction in sodium ion uptake by the rice seedlings. At three days after NaCl treatment, the rice seedlings pretreated with inabenfide showed a higher ${\Delta}F/Fm'$(30%) and lower lipid peroxidation(28%) compared with the rice seedlings treated with NaCl alone. After NaCl treatment, CAT activity in the third leaf of rice seedlings decreased significantly but alleviated by pretreatment with inabenfide. Furthermore, pretreatment with inabenfide also reduced the level of SA which accumulated drastically in the third leaf of rice seedlings within a day after exposure to salt stress. These results suggest that inabenfide prevents SA accumulation in rice seedlings under salt stress which eventually induces the alleviation of salt stress damage.

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Development of Optimum Processing Conditions in Air Dried Garlics Using Response Surface Methodology (반응표면 분석법을 이용한 마늘 열풍건조 공정의 최적화)

  • 김명환;김병용
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.19 no.3
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    • pp.234-238
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    • 1990
  • The effects of salt concentration immersion time in a salt solution prior to air dehydration and heating of air temperature during dehydration upon the browning reaction and pyruvic acid content of air dried garlics to a 6.5% moisture content(wet basis) were analyzed by a response surface methodology(RSM), Those values were also predicted by using a second degree polynomial regression model. Heating of air temperature was the most significant factor affecting the both browning reaction and pyruvic acid content. Salt concentration had more influence to browning reaction than immersion time whereas immersion time was more impor-tant factor than salt concentration on a retention of pyruvic acid sugested different processing conditions. While the processing conditions to minimize the browning reaction(O.D=0.009) were 0.3% of salt solution 9 min of immersion time and 5$0^{\circ}C$ of air temperature compared to control(O.D=0.022) of air dehydration at 5$0^{\circ}C$ Pyruvic acid contents were maximized(174 $\mu$mole/g garlic solid) at the 0.1% of salt solution 3 min of immersion time and 5$0^{\circ}C$ of air temperature compared to control(147 $\mu$mole/g garlic solid) of air dehydration at 5$0^{\circ}C$

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