scholarly journals Manuka Honey with Varying Levels of Active Manuka Factor (AMF) Ratings as an Anaerobic Fermentation Substrate for Limosilactobacillus reuteri DPC16

Fermentation ◽  
2021 ◽  
Vol 7 (3) ◽  
pp. 128
Author(s):  
Anand Mohan ◽  
Noemi Gutierrez-Maddox ◽  
Tong Meng ◽  
Ning He ◽  
Yihuai Gao ◽  
...  

Manuka honey is known for its strong antibacterial effect against pathogens but can promote probiotic growth in certain conditions. In a two-factor ANOVA study, AMFTM Manuka honey (Active Manuka Factor: 05+, 10+, 15+ and 20+) was utilised as a substrate for probiotic Limosilactobacillus reuteri DPC16 in an anaerobic batch fermenter for 36 h. The biomass growth in MRS broth was noticeably higher with AMF Manuka honey than invert syrup and control samples without any additional sweetener source. The pH value was significantly lowered below 4.0 only in the AMF samples with the formation of lactic acid as the major metabolite. Other beneficial short-chain fatty acids (SCFA), such as acetic, succinic, and propionic acids, produced during the fermentation, along with the honey saccharides, were quantified by two-dimensional (2-D) nuclear magnetic resonance (NMR) spectroscopy. A significantly (p < 0.05) high biomass in AMF 20+ sample after 36 h, can partly be attributed to the high total sugar and oligosaccharide content in the honey. Importantly, however, no statistically significant difference was observed in the recorded major fermentation outcomes for the different AMF levels. The results, nevertheless, indicate the potential prebiotic efficacy of Manuka honey as a fermentation substrate for the lactobacilli probiotic strain.

Author(s):  
S. K. Anil ◽  
Praveen Gidagiri ◽  
R. Hamsa ◽  
Praveen Jholgikar

The present investigation on Optimization of yeast level and duration for aerobic and anaerobic fermentationfor production of jack fruit (Artocarpus heterophllyus L.) wine was carried out in the department of Post Harvest Technology, Kittur Rani Channamma College of Horticulture (University of Horticultural Sciences, Bagalkot), Arabhavi, during the year 2010-2011. It consisting of different treatments viz T1 –20 g of yeast for 100 Kg of must+24 hrs aerobic and 7 days anaerobic fermentation, T2-30 g of yeast for 100 Kg of must+24 hrs aerobic and 7 days anaerobic fermentation, T3–20 g of yeast for 100 Kg of must+24 hrs aerobic and 14 days anaerobic fermentation, T4 –30 g of yeast for 100 Kg of must+24 hrs aerobic and 14 days anaerobic fermentation, T5 –20 g of yeast for 100 Kg of must+48 hrs aerobic and 7 days anaerobic fermentation, T6 –30 g of yeast for 100 Kg of must+48 hrs aerobic and 7 days anaerobic fermentation, T7 –20 g of yeast for 100 Kg of must+48 hrs aerobic and 14 days anaerobic fermentation and T8 –30 g of yeast for 100 Kg of must+48 hrs aerobic and 14 days anaerobic fermentation. The experiment was laid out in a completely randomized design with three replications. The main objective was to standardize the optimum yeast level and duration required for aerobic and anaerobic fermentation and also to study various biochemical and organoleptic quality of wine recorded at regular interval during the storage of wine. The highest TSS was maintained in treatment T1 (10.47) and T4 (10.47) in cold condition and in ambient condition T1 (10.43) followed by T2 (10.35) shows highest TSS. The pH value increases from 3.36 (fresh wine) to 3.89 (6 MAS in cold) and 3.84 (6 MAS in ambient) and acidity will decrease from 0.59 to 0.49 (Cold) and 0.52 (ambient). Alcohol content increase from 7.46 to 8.12 percent (Cold) and 8.04 (Ambient). Tannin per cent were showed non significant difference and decreasing trend can be seemed over period of aging, T8 (30 g of yeast + 48 hrs aerobic and 14 days of anaerobic fermentation) observe the highest per cent of tannins throughout the investigation.


2019 ◽  
Vol 38 (3) ◽  
pp. 320
Author(s):  
Susana Ristiarini ◽  
Muhammad Nur Cahyanto ◽  
Jaka Widada ◽  
Endang Sutriswati Rahayu

Angkak, commonly used for food colorant and flavor enhancers in oriental cuisine, is the result of fermentation by Monascus purpureus on steamed rice. In addition to producing pigments Monascus purpureus, Angkak also produces mycotoxins, citrinin, which is hepato-nephrotoxic. Biosynthesis of pigment and citrinin is following a polyketide synthase pathway and then subdivides to form pigment or citrinin. Fatty acids and amino acids are known to be the precursors of red pigment formers in their biosynthetic pathways. The purpose of this research was to know the effect of addition of lauric fatty acid and amino acid glycine on steamed rice substrate to the color characteristic and citrinin level by M. purpureus JK9A. The amount of fatty acid and glycine was respectively 0.5% and 1% (w/w). Fermentation was carried out for 14 days and every two days the solids content of fermented products, pH, number of cells, colors, pigments dissolved in water were measured. The level of citrinin was tested at the end of the fermentation period (14th day). There was no significant difference between treatments for the solids content of about 23  ̶  29% and the number of cells 6.32  ̶  6.56 logCFU/g. While the pH value, color and water-soluble pigments were significantly different between treatment and control. The ˚hue values of glycine and combination of lauric-glycine were 16.11 and 15.33, respectively, lower than controls (22.76). The highest A500nm/A400nm ratio was in the combination treatment of lauric-glycine and the lowest levels of citrinin also in the treatment of lauric-glycine combination. This study noticed that the addition of lauric or glycine and its combination in rice media for Monascus purpureus JK9A fermentation proved to increase the biosynthesis of red pigment (46.34%) and decrease citrinin level up to 49.97%.


2006 ◽  
Vol 76 (2) ◽  
pp. 57-64 ◽  
Author(s):  
Hsien-Tsung Yao ◽  
Meng-Tsan Chiang

Chitosan has been shown to have lipid-lowering effects, but little is known about the effect of chitosan on colonic pH value and short-chain fatty acid (SFCA) concentration. This study was designed to investigate the effect of chitosan on colonic bacterial fermentation and fecal bacterial enzyme activity in rats fed a diet enriched in cholesterol. Male Sprague-Dawley rats were fed a diet containing 5% cellulose (CE) or 5% chitosan (CS) for 15 days. Significantly increased fecal cholesterol and triacylglycerols contents were observed in rats fed the chitosan diet. In addition, lower cecal acetate and butyrate concentrations and higher fecal acetate, propionate, and butyrate concentrations were observed in rats fed the CS diet when compared to those fed the CE diet. Although rats fed with the CS diet exhibited an elevated cecal (cecum with contents) weight and higher pH value, no significant difference in fecal pH value was observed between the CE group and the CS group. Chitosan significantly decreased fecal mucinase and beta-glucuronidase activities. Results from this study show that chitosan may alter fecal bacterial enzyme activities and SCFA concentrations and the beneficial effects of chitosan on the colonic environment may occur in the distal colon in rats.


2019 ◽  
Vol 4 (1) ◽  
pp. 39
Author(s):  
Renu Agarwal ◽  
SK Gupta ◽  
Sushma Srivastava ◽  
Rohit Saxena

Introduction: Ocimum basilicum (OB), a herb known for its antihypertensive, anticholinesterase and antioxidant properties was investigated for possible intraocular pressure (IOP) lowering effects in rabbits with ocular hypertension (OHT). Methods: The IOP lowering effect of a single drop of OB extract (OBE) was evaluated in oculonormotensive rabbits using three concentrations (0.25, 0.5 and 1% w/v). The concentration showing maximum IOP reduction was further evaluated in rabbits with water-loading and steroid-induced OHT. Results: IOP lowering effect of OBE 0.5% in oculonormotensive rabbit eyes was significantly greater compared to OBE 0.25% (p<0.05) but was comparable (p>0.05) to OBE 1%. Therefore, 0.5% concentration was selected for further evaluation. Pretreatment with OBE (0.5%) caused significantly lower increase in IOP after water loading amounting to 23.39% above baseline as compared to 54.00% in control eye, 15 minutes post water loading. At 60 minutes, post water loading, mean IOP rise was 95.12% and 63.58% in control and test eyes, respectively. Significant difference between the mean IOP of two eyes persisted during the 2nd hr. In rabbits with steroid induced OHT, OBE 0.5% produced a mean IOP reduction of 24.73% at the end of first hr and the mean peak IOP reduction of 31.63% was observed at the end of 2 hr. A significant difference between the IOP of test and control eyes persisted from 1 to 6 hr. Conclusions: Ocimum basilicum seed extract showed significant IOP lowering effect in rabbits with water loading and steroid induced OHT, however, its utility as an effective antiglaucoma medication needs further investigations.


2016 ◽  
Vol 1 (1) ◽  
pp. 22
Author(s):  
Nazli Zainuddin ◽  
Nurul Azira Mohd Shah ◽  
Rosdan Salim

Introduction: The role of virgin coconut oil in the treatment of allergic rhinitis is controversial. Thus, the aim of the present study is to determine the effects of virgin coconut oil ingestion, in addition to standard medications, on allergic rhinitis. We also studied the side effects of consumption of virgin coconut oil. Methods: Fifty two subjects were equally divided into test and control groups. All subjects received a daily dose of 10mg of loratadine for 28 days. The test group was given 10ml of virgin coconut oil three times a day in addition to loratadine. The symptoms of allergic rhinitis were scored at the beginning and end of the study. Results:, the symptom score were divided into nasal and non-nasal symptom scores. Sneezing score showed a significant difference, however the score was more in control group than test group, indicating that improvement in symptom was more in control group. The rest of the nasal symptom and non-nasal symptom score showed no significant difference between test and control groups. Approximately 58% of the test subjects developed side effects from consumption of virgin coconut oil, mainly gastrointestinal side effects. Conclusion: In the present study, ingestion of virgin coconut oil does not improve the overall and individual symptoms of allergic rhinitis, furthermore it has side effects.


2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Roghieh Safari ◽  
Seyed Hossein Hoseinifar ◽  
Maryam Dadar ◽  
Hien Van Doan

AbstractThe present study investigated possible effects of dietary malic acid on the expression of immunity, antioxidant and growth related genes expression as well as skin mucus immune parameters in common carp. Common carp (Cyprinus carpio) fingerlings were fed diets supplemented with different levels (0 [control], 0.5%, 1%, 2%) of malic acid (MA) for 60 days. The results revealed highest expression levels of immune-related genes (tnf-alpha, il1b, il8 and lyz) in skin of common carp fed 2% MA (P < 0.05). Regarding 1% MA treatment comparison with control group, significant difference was noticed just in case of lyz (P < 0.05). Evaluation of growth related genes expression revealed no significant difference between treatments (P > 0.05). The study of antioxidant related genes (gsta and gpx) in common carp skin fed with MA, showed significant difference between treated groups and control (P < 0.05). Carps fed with 2% MA had highest alkaline phosphatase activity in skin mucus compared other treated groups and control (P < 0.05). There were no significant difference between 0.5% and 1% and control (P > 0.05). The study of total protein and total immunoglobulin (Ig) in common carp skin musus revealed no alteration following MA treatment (P > 0.05). The present data demonstrated that feeding with MA altered immune and antioxidant genes expression in skin mucus of common carp.


2017 ◽  
Vol 1 (2) ◽  
pp. 138
Author(s):  
Mekar Dwi Anggraeni ◽  
Lutfatul Latifah ◽  
Aprilia Kartikasari ◽  
Ima Rismawati

Background and purpose: The earlier development of the attitude toward exclusive breastfeeding produces the longer exclusive breastfeeding duration. Considering the first marriage age among Indonesian, the attitude toward exclusive breastfeeding should be developed at the adolescence age. The purpose of this study was to examine the effect of the attitude toward breastfeeding concept based comic on the adolescent's attitude toward exclusive breastfeeding. Method: This was a quasy experimental posttest only with control group study. The respondents were provided an comic. The respondent's attitude toward exclusive breastfeeding was measured using The Breastfeeding Attitude Questionnaire. Data were analyzed using independent and dependent t test. Results: The majority of respondents were aged 17 years old in both intervention (70%) and control grup (63%), first child in both intervention (23,3%) and control grup (26,7%), and had a nuclear family in both intervention (80%) and control grup (90%). The independent t test showed that there was a significant difference between post-test scores among the intervention and control groups (t = 5,602, p < 0,01). Conclusion and recommendation: Nurses may use the Attitude Toward Breastfeeding based comic to increase the Adolescence's attitude toward breastfeeding.Keywords: Comic, Attitudes Toward Exclusive Breastfeeding, Adolescence


2017 ◽  
Vol 2 (1) ◽  
pp. 46
Author(s):  
Eva Sudarwati ◽  
Shynta Amalia

Abstract This study attempts to see the effect of Think, Talk, and Write strategy on the students’ narrative writing competence. Considering the importance of the use of teaching media, this study tries to integrate Stick Figure as a teaching media in Think, Talk, and Write Strategy. A quasi experimental study was conducted to see the improvement of the students’ narrative writing competence. It involved 42 students who were selected on the basis of convenience sampling and assigned into two groups; experimental and control groups. The statistical analyses of paired sample t-test in experimental group showed that there was significant improvement on the students’ writing competence before (M=5.77, SD= 2.342) and after (M= 11.79, SD= 2.342), t(21)=12.059, p<0.05.Moreover, the result of independent t-test between experimental and control groups showed a significant difference. It can be seen that the mean differences was 3.79545 and the significance value is lower than 0.05, 0.000<0.05.


2021 ◽  
pp. 1-9
Author(s):  
Hiroki Ushirozako ◽  
Tomohiko Hasegawa ◽  
Yu Yamato ◽  
Go Yoshida ◽  
Tatsuya Yasuda ◽  
...  

OBJECTIVESurgical site infection (SSI) after posterior spinal surgery is one of the severe complications that may occur despite administration of prophylactic antibiotics and the use of intraoperative aseptic precautions. The use of intrawound vancomycin powder for SSI prevention is still controversial, with a lack of high-quality and large-scale studies. The purpose of this retrospective study using a propensity score–matched analysis was to clarify whether intrawound vancomycin powder prevents SSI occurrence after spinal surgery.METHODSThe authors analyzed 1261 adult patients who underwent posterior spinal surgery between 2010 and 2018 (mean age 62.3 years; 506 men, 755 women; follow-up period at least 1 year). Baseline and surgical data were assessed. After a preliminary analysis, a propensity score model was established with adjustments for age, sex, type of disease, and previously reported risk factors for SSI. The SSI rates were compared between patients with intrawound vancomycin powder treatment (vancomycin group) and those without (control group).RESULTSIn a preliminary analysis of 1261 unmatched patients (623 patients in the vancomycin group and 638 patients in the control group), there were significant differences between the groups in age (p = 0.041), body mass index (p = 0.013), American Society of Anesthesiologists classification (p < 0.001), malnutrition (p = 0.001), revision status (p < 0.001), use of steroids (p = 0.019), use of anticoagulation (p = 0.033), length of surgery (p = 0.003), estimated blood loss (p < 0.001), and use of instrumentation (p < 0.001). There was no significant difference in SSI rates between the vancomycin and control groups (21 SSIs [3.4%] vs 33 SSIs [5.2%]; OR 0.640, 95% CI 0.368–1.111; p = 0.114). Using a one-to-one propensity score–matched analysis, 444 pairs of patients from the vancomycin and control groups were selected. There was no significant difference in the baseline and surgical data, except for height (p = 0.046), between both groups. The C-statistic for the propensity score model was 0.702. In the score-matched analysis, 12 (2.7%) and 24 (5.4%) patients in the vancomycin and control groups, respectively, developed SSIs (OR 0.486, 95% CI 0.243–0.972; p = 0.041). There were no systemic complications related to the use of vancomycin.CONCLUSIONSThe current study showed that intrawound vancomycin powder was useful in reducing the risk of SSI after posterior spinal surgery by half, without adverse events. Intrawound vancomycin powder use is a safe and effective procedure for SSI prevention.


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