The caries activities of some commercially available children's beverages were measured to determine the risk of dental caries and provide basic data for preventing dental caries. For the experimental beverage, the beverages with the highest market share among carbonated beverages, fruit beverages, milk, and fermented milk products sold in the domestic market were selected. As a control, 0.25% glucose trypticase soy broth was prepared and used. The pH of the beverages, titrate acid and buffering capacity, and the acid production and vitality were measured over time after inoculating the beverages with Streptococcus mutans. The pH of children's beverages was the lowest in soda (2.61±0.02), and milk had the lowest in titratable acid (14.00±0.58). Fermented milk (80.33±3.64) had the highest buffering capacity, and carbonated beverage (9.40±1.06) had the lowest (P<0.05). Carbonated beverages (3 hr and 25 min) had the highest acid production, and milk (4 hr) had the lowest. In conclusion, thorough oral hygiene management is necessary after consuming children's beverages because they have a low pH promote high acid production of S. mutans.
Kim, Hoon;Yu, Kwang-Won;Lee, Jun-Soo;Baek, Gil-Hun;Shin, Ji-Young
Korean Journal of Food Science and Technology
/
v.46
no.1
/
pp.79-86
/
2014
In previous work, we fermented coffee beans using solid-state culture with various fungal mycelia to enhance the physiological activity of the coffee. The coffee fermented with Monascus sp. showed a higher physiological activity than non-fermented coffee or other coffees fermented with mushroom mycelium. The aim of this study was to characterize the various fermented coffees with respect to their area of cultivation and their variety using Monascus purpureus (MP) mycelium solid-state culture. Thirty types of green coffee beans, which varied in terms of their cultivation area or variety, were purchased from different suppliers and fermented with MP under optimal conditions. Each MP-fermented coffee was medium roasted and extracted further using hot water (HW) under the same conditions. Of the HW extracts, those derived from MP-Mandheling coffees had the highest yield (13.6-15.5%), and MP-Robusta coffee showed a significantly higher polyphenolic content (3.03 mg gallic acid equivalent/100 mg) and 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulphonic acid) free radical scavenging activity (27.11 mg ascorbic acid equivalent antioxidant capacity/100 mg). Furthermore, in comparison to other MP-fermented coffees at $1,000{\mu}g/mL$, MP-Robusta coffee showed not only the most effective inhibition of tumor necrosis factor-${\alpha}$ (TNF-${\alpha}$) production in LPS-stimulated RAW 264.7 cells (67.1% of that in LPS-stimulated control cells), but also an effective inhibition of lipogenesis in 3T3-L1 adipose cells (22.2% of that in differentiated control cells). In conclusion, these results suggest that Vietnam Robusta coffee beans solid-state fermented with MP mycelium are amenable to industrial applications as a functional coffee beverage or material.
Fermentation characteristics of yakju prepared with addition of Opuntia ficus indica were examined, with respect to the nature and concentration of additional added materials. The pH level began to decrease after the secondary brewing stage and the total acid content increased during fermentation. The level of reducing sugars in yakju prepared with Opuntia ficus indica increased at the first brewing stage and then slowly decreased after 4 days of fermentation. The ethanol content of supplemented yakju rapidly increased during the initial 6 days of fermentation, to a maximum content of 17.1% after 14 days. The free sugar content was higher in yakju fermented with Opuntia ficus indica stem compared with fruit. The level of organic acids increased as the amount of Opuntia ficus indica material increased. Organic acid level increased during fermentation and lactic acid was the main organic acid in yakju fermented with Opuntia ficus indica. Sixteen volatile compounds were found by GC-MS in supplemented yakju. The most prominent volatile component was iso-amyl alcohol, followed by butyl alcohol and methyl esters. The DPPH radical-scavenging activity of yakju fermented with Opuntia ficus indica stem was higher than when yakju was prepared with fruit. Sensory scores of yakju fermented with 20% (w/v) fruit and 10% (w/v) stem were greater than those of yakju prepared by other treatments.
The housewives living in the rural area of Kangwondo were asked by using the questionaires about Korean traditional food, traditional fermented food, and traditional seasonal food enjoyed during traditional holidays. The results obtained are as follows; 1. Among Korean traditional foods, boiling rice, especially boiling rice and boiling mixed rice(70%) was the most frequently enjoyed. Hobakjook(17.1%) and popjook(10.5%) were enjoyed the most among jook. However, jook was not enjoyed as much as bah due to the difficulty of cooking method. 2. Doenjangkuk(94%) and mijokkuk(84.1%) which could be made easily and quickly were enjoyed most frequently among kuk, doenjangchigae(86.1%) and kimchichigae(78.1%) were enjoyed a lot among tchigae. 3. Gui was enjoyed a lot generally and kimgui(82.4%) and fishgui(78.1%) were enjoyed frequently. Especially, ojingogui was enjoyed most frequently compared with other areas. It is because squid is easily available in KangwonDo area. Hobakchon(51.8%) was enjoyed the most among Chon. 4. Pugochim(30.2%) among chim and kamjajorim(77.1%) among jorim were enjoyed the most due to the availability of pugo and kamja in the area. 5. Kongnamul(83.4%) and shigmuchinamul(66.3%) were enjoyed the most among namul. Chuinamul (28.7%) was the most frequently enjoyed among sannamul. 6. Kalkuksoo(69.8%) was the most frequently enjoyed ilpumfood. In addition, kalkuksoo(30.3%) and kamja ongsim(11.4%) which are traditional KangwonDo food, were enjoyed a lot. 7. For home party, Songp'yon(25.3%) and shik'ye(27.8%) were the most frequently enjoyed ricecake and korean beverage, respectively. 8. Korean traditional holidays in which traditional seasonal food was enjoyed, were in order of the New Yea.'s Day(97.9%), Chusok(95.6%), Sangwan(First Full moon day)(70.8%), Dong-ji(49.5%), Sambok (27.7%), Danoh(22.6%), and Hanshik(14.1%). Generally, Ipchun, Sam Jin's day, Yudu, and Chilsok were not enjoyed. 9. Korean traditional fermented food enjoyed were in order of kimchi(98.2%), koch'ujang(96.4%), toenjang(89.4%), kanjang(86.8%), makjang(74.5%), and jang-a-chi(66.4%). Especially, Koch'ujang was made by themselves in almost all homes. The Korean traditional foods frequently enjoyed were investigated. We have to keep and develop our traditional food and its cooking method for our offsprings.
To study the optimum fermentation and aging conditions for preparation of Andong Sikhe which is consumed in the northern Kyungbuk province as a traditional beverage, Sikhe were fermented and aged at $12^{\circ}C$ for 48, 60 and 72hrs and fermented at 40, 50. and $60^{\circ}C$ for 2, 3, and 4hrs and then aged at $12^{\circ}C$ for 20 hrs, Non-volatile organic acids and free sugars were analyzed by GC and HPLC, respectively, and sensory test was performed. Sikhe fermented at $40^{\circ}C$ for 3hrs and aged at $12^{\circ}C$ for 20hrs was evaluated the most favorable one by sensory test. This Sikhe had the lowest pH 4.6~4.7 among sample and 14.6% of sugar. The sugar content was lower than those of Sikhe Fermented at $50^{\circ}C$ and $60^{\circ}C$. In organic acid analysis, the concentration of malate 67.53%/mg in this Sikhe was the highest. Lactate, succinate and maleate were produced more in this Sikhe than in any other ones. Oxalate which was existed before fermentation was not found in the Sikhe, and a small amounts of citrate and fumarate were produced. In sugar analysis, maltose was dominant 11.56%, glucose 1.25% and fructose 0.45%.
Go, Seok Hyeon;Monmai, Chaiwat;Jang, A Yeong;Lee, Hyungjae;Park, Woo Jung
Food Engineering Progress
/
v.22
no.4
/
pp.337-343
/
2018
Coffee is a commonly consumed beverage that contains anti-inflammatory compounds such as caffeine, chlorogenic acid, cafestol, trigonelline, and kahweol. Lactobacillus plantarum is a lactic acid bacterium most frequently used in the fermentation of food products of plant origin. L. plantarum is able to degrade some food phenolic compounds and provide high value-added compounds such as powerful antioxidants or food additives approved as flavouring agents. In this study, we investigated the anti-inflammatory effects of coffee extract fermented by L. plantarum on RAW264.7 macrophages. In lipopolysaccharide-stimulated RAW264.7 cells, these coffee extracts exhibited anti-inflammatory activities through the reduction of nitric oxide (NO) production and inducible NO synthase expression. Fermented coffee extracts significantly decreased the expression of inflammatory cytokines such as tumor necrosis factor ${\alpha}$, interleukin $1{\beta}$, interleukin 6, and interferon ${\gamma}$. Cyclooxygenase-2, which is one of the key biomarkers for inflammation, was significantly suppressed. These results might be helpful for understanding the anti-inflammatory mechanism of fermented coffee extract on immune cells and, moreover, suggest that fermented coffee extract may be a beneficial anti-inflammatory agent.
The survey on the practice of the memorial ceremonial food in Chuncheon area showed it varied according to social position of officiator, location(inland or seaside town) , and personal condition. The study included the foods prepared for the memorial services on the memorial day. New Year's Day and Chusok. 1. 40.4% of the subjects were in the thirties at their age, 46.6% were high school graduates, 57.3% were the first daughter-in-law, 40.4% had no religion, 30.9% were working at public administration and earned less than 1 to 1,5 million won monthly. 2. 71.7% of the subjects who replied that the ancestor worship service had to be kept were Buddhists. 55.4% of them were high school graduates, and 58.8% of them ran independent businesses. They learned how to practice the ancestor worship service from their mother before marriage or from their parents-in-law after marriage. 3. The older the officiators, the better they wanted to keep the traditional format of the service, but the Christians and Catholics wanted to change the format to western style in the future. 4. 92.7% of them served cooked milled rice. They prepared the soup in the order of beef soup, radish soup and dried Alaskan pollack soup. 5. Among cooked vegetable dishes, bracken was used the most and balloonflower root, mung bean sprout and spinach followed. Among jeon(pan-fried foods). frozen Alaskan pollack was used the most and buckwheat, mung bean and meatball followed. 6. They served san-juk(beef kebab) mostly on the ceremony. Among the grilled foods, tofu was the favorite, and croaker followed. 7. Among the fried foods. squid was the favorite, and sweet-potato and shrimp followed. Among the dried foods. they used in the order of dried Alaskan pollack, dried beef and squid. 8. Among the rice cake and traditional confectionery, they used in the order of Yak-sik(sweet rice cake), Gang-jeong(fried glutinous rice cookie), Jeol-pyun and In-jeol-mee. Among a beverage, they served Sik-hye(fermented rice drink) mostly. 9. Among fruits, apples. jujube, chestnut and dried persimmon were served. Aong a liquor, Cheongju was served mostly. 10. Soy sauce, salt and salted fermented fish were served, too.
Lee Soo-Jin;Choi Yung-Hyun;Lee Yong-Tae;Chung Kyung-Tae;Jeong Young-Kee;Choi Byung-Tae
Journal of Physiology & Pathology in Korean Medicine
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v.20
no.1
/
pp.65-68
/
2006
It was examined the effect of fermented rice wine using mycelium of Phellinus linteus (FWPL) on the gastric mucosa of rat. The gastric mucosal lesions were not seen macroscopically in normal, but ethanol-administrated rats produced congestion and edema with a few local lesions. The administration of FWPL showed a similar pattern as like normal except trace histopathological changes. The results of Western blot analyses showed that the higher expression of inducible nitric oxygenase (iNOS), cyclooxygenase (COX)-1, COX-2, tumor necrosis factor-$\alpha$ and c-fos, especially COX-2, in the ethanol-administrated rat compared with normal rat. But FWPL-administrated rat showed a trace increase of these expression compared to normal rat. About immunohistochemical observations, weaker iNOS reactions were detected in mucous cells of epithelim of ethanol administrated rat compared with normal and FWPL-administrated rat. These results suggested that FWPL-administrated rat showed a trace changes on the mucus barrier-related protein expression compared with ethanol-administrated rat and thus FWPL may be use to develop a functional alcoholic beverage.
This study was undertaken to determine the suitability of tomato juice as a raw material for production of probiotic juice by four lactic acid bacteria (Latobacillus acidophilus LA39, Lactobacillus plantarum C3, Lactobacillus casei A4, and Lactobacillus delbrueckii D7). Tomato juice was inoculated with a 24h-old culture and incubated at $30^{\circ}C$. Changes in pH, acidity, sugar content, and viable cell counts during fermentation under controlled conditions were measured. The lactic acid cultures reduced the pH to 4.1 or below and increased the acidity to $0.65\%$ or higher, and the viable cell counts (CFU) reached nearly 1.0 to $9.0\times10^9/ml$ after 72 h fermentation. The viable cell counts of the four lactic acid bacteria in the fermented tomato juice ranged from $10^6\;to\;10^8\;CFU/ml$ after 4 weeks of cold storage at $4^{\circ}C$. Probiotic tomato juice could serve as a health beverage for vegetarians or consumers who are allergic to dairy products.
The optimum conditions for the development of a lactic acid beverage from the concentrated whey were studied using reverse osmosis system. For lactose hydrolysis rate and acid productivity, the strain mixture of Streptococcus thermophilus and Lactobacillus bulgaricus was more efficient than that of Streptococcus cremoris and Streptococcus lactis. The titratable acidity was increased at higher LCR (lactose concentration ratio) of whey. However, the higher LCR of whey was, the slower the pH decreasing rate was. The amount of sediment was maximum at LCR of 1.0 : 1 whey, hit there was no sediment at LCR 3.0 : 1 whey after 12 hours. Propylene glycol alginate was the best stabilizer and prevented from sedimentation at the concentation of less than 0.1%. Aspartame as a sweetener of yoghurt flavor had the best palatability.
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