Rosella Flower Research Articles

Pengaruh Penambahan Ubi Jalar Kuning (Ipomoea Batatas L.) dan Bunga Rosella (Hibiscus Sabdariffa L.) Terhadap Karakteristik Fisikokimia dan Organoleptik Saus Tomat

Abstract. Tomato sauce is a product produced from a mixture of tomato puree or tomato paste or tomato solids obtained from ripe tomatoes, which is processed with spices, with or without the addition of other food ingredients and permitted food additives. The addition of yellow sweet potato was chosen as a natural thickener and rosella flowers to replace the role of synthetic dyes in tomato sauce. The research design used in this study was a randomized factorial block design consisting of 2 factors, namely the addition of yellow sweet potato (0%,15% and 30%) and the addition of rosella flowers (0%, 5% and 10%). Parameters tested are water content, total dissolved solids, pH, total carotene, antioxidant activity, color intensity and organoleptic. The results showed that there was an interaction between the addition of yellow sweet potato and rosella flower on water content, total dissolved solids, pH, antioxidant activity. The addition of yellow sweet potato affected the water content, total dissolved solids, pH, total carotene, antioxidant activity, brightness (L) and redness (a+). The addition of rosella flowers affected the water content, total dissolved solids, pH, total carotene, antioxidant activity and brightness (L). The best treatment was A2B1 with a value of water content (63.32%), total dissolved solids (19.33°Brix), pH (3.89), total carotene (22.32µg), antioxidant activity (76.71%), color intensity (L 39.63; a* 15.6; b* 16.2); aroma 4.24 (rather delicious), color 4.12 (rather bright), taste 4.56 (delicious), texture 4.88 (thick), preference 4.36 (rather like).

Effect of giving rosella flower extract (hibiscus sabdariffa) after physical exercise on uric acid levels in healthy men

The aim of this study was to test whether rosella flower extract can reduce uric acid levels after physical activity. Pre- and post-control groups were used in this experimental investigation. Purposive sampling was used to select the individuals, and once they were chosen, they were split into two groups: the treatment group (P) received 500 mg of rosella flower extract, and the control group (K) received a placebo. A total of 20 healthy men aged 19-25 years participated in this study. Data collection was carried out for 1 day starting with collecting data on subject characteristics. After that, the subjects were asked to warm up. Physical activity was carried out afterwards. The activity included running 2400 meters with moderate intensity. Then the baseline data was taken by checking uric acid levels. Then the samples were given a placebo and rosella flower extract to drink directly. 60 minutes later the post-test uric acid level data was taken. The results of this study showed that there was a decrease in uric acid levels in both the control and treatment groups. However, a significant decrease occurred in the group with 500 mg of rosella flower extract intervention. Given its high antioxidant content, we recommend consuming roselle flower extract as an additional supplement after exercise.

What Do Chemistry Teachers Say About Scientific Creativity and the Development of Rosella Flower Extract Indicators as a Learning Medium for Acid-Base Titration?

The rapid development of industry 4.0 makes scientific creativity an important skill for every individual to be able to adapt and develop. Therefore, in the learning process, it is necessary to provide for the development of students' scientific creativity both as a professional skill and as a general life competency. This research aims to describe teachers' perceptions of learning acid-base titration using natural indicators from Rosella Flower extract to increase students' scientific creativity. The research method used was a survey method by distributing questionnaires to 21 high school chemistry teachers throughout Bandar Lampung City. The results of the research show that 100% of teachers have never developed an acid-base titration indicator from Rosella flower extract, and trained students' scientific creativity by providing a real problem. Based on these findings, it can be concluded that it is necessary to develop natural indicators from Rosella Flower extract as a learning medium for acid-base titration to increase students' scientific creativity.

EFFECTIVENESS OF ROSELLA AS AN ANTI-INFLAMMATORY

Rosella flower (Hibiscus sabdariffa L.) can be used in the health sector. Rosella petal extract contains flavonoids such as gossypetin, hibiscetin, sabdaretine, alkaloids, and saponins. Rosella has properties such as an antiseptic, diuretic, anti-inflammatory, antibacterial, antioxidant, and can increase endurance. This paper discusses the anti-inflammatory effect of the rosella plant. The purpose of this article is to describe the effectiveness of rosella plant as an anti-inflammatory. This article collects research results from journals, textbooks, and websites accessed through the National Library of Medicine and Google scholar databases as a method. The reference source inclusion criteria are published in 2012-2022 with topics that are in line with the effectiveness of rosella as an anti-inflammatory. The reference source exclusion criteria were literature published before 2012. A total of 25 references were found, 15 references were selected, and 10 references were excluded. The studies have shown that the content of rosella flower extract is able to inhibit the cyclooxygenase enzyme thereby inhibiting the synthesis of inflammatory mediators, namely leukotrienes and prostaglandins and reducing the number of neutrophils so that it can accelerate the wound healing process, however administration of high doses of rosella extract is less effective as an anti-inflammatory because the levels of flavonoids decreased activity at high extract concentrations.

EFFECTS OF USING HYDROXIAPATITE-GELATIN GEL AND ROSELLA EXTRACT TO PREVENT RELAPSE IN ORTHODONTIC TREATMENT

To correct malocclusion and malposition in dentistry using orthodontic treatment. Teeth that have moved through the bone with orthodontic devices tend to return to their original position or what is usually called relapse. Relapse is when the teeth return to their original position before orthodontic treatment was carried out. Relapse prevention can be achieved using mechanical devices but there are still some limitations. The use of scaffolds can be a solution in preventing tooth relapse because scaffolds can support cells to grow and develop into new bone in the damaged area. The scaffold components are hydroxyapatite, gelatin, and rosella flower extract which contains flavonoids to inhibit bone resorption. To find out whether these components are toxic or not before they are applied to the human body, a cytotoxicity test is carried out, which is a laboratory study. This research was carried out by incubating the hydroxyapatite scaffold, gelatin and rosella flower extract with osteoblast cells for 24 hours to see whether the rosella extract was toxic to osteoblast cells. Conclusion: This toxicity test shows that rosella flower extract as an ingredient in making scaffolds is not toxic to osteoblast cells.

Fraction Activities Rosella Flower (Hibiscus Sabdariffa L) as an Antibacterial and Antibiofilm Escherichia Coli ATCC 25922

Rosella flowers (Hibiscus sabdariffa L) contain alkaloid, flavonoid, saponin and tannin compounds. The compounds contained in rosella flowers have activity as antibacterial and antibiofilm. Biofilm is the ability of microorganisms that stick to the surface of objects and form a matrix. This study aims to antibacterial and biofilm activity in the form of inhibition of biofilm formation and biofilm degradation of E.coli bacteria. Rosella flowers were extracted using maceration method with 96% ethanol solvent. The thick extract was then fractionated with n-hexane, ethyl acetate and water solvents. Antibacterial activity test using diffusion and dilution methods followed by observation of cell wall and membrane damage using SEM and ion leakage with AAS. Biofilm activity test was conducted using a microplate device and readings were taken at a wavelength of 595 nm. The absorbance results of the inhibition percentage to determine the IC50 and EC50 values. The average IC50 values of biofilm formation inhibition test on extract, n-hexane fraction, ethyl acetate fraction and water fraction against E. coli bacteria are 1.059; 1.070; 0.921; 0.863. The EC50 values of biofilm degradation test on extract, n-hexane fraction, ethyl The minimum killing concentration value of rosella flower water fraction against E. coli is 25 mg/ml. the effect of the active fraction of rosella flower on E. coli bacteria is on the cell wall and cell membrane

Analysis of Phenolic Content in Green Tea Kombucha and Rosella (Hibiscus sabdariffa) Kombucha Using Spectrophotometer Uv-Vis

Phenolic compounds are compounds that have hydroxyl groups and are most abundant in plants. Green tea and rosella flowers are types of plants that contain phenolic compounds and can be used as ingredients to make kombucha tea drinks. Kombucha is a fermented drink made from tea and sugar which is fermented by a colony of bacteria and yeast. The aim of this research was to determine the levels of phenolic compounds in green tea kombucha and rosella flowers through experimental tests using spectrophotometry uv-vis. The results showed that the phenolic content of green tea kombucha was 162.35 mg/L GAE, while rosella kombucha had a level of 101.30 mg/L GAE. Thus, the phenolic content of green tea kombucha is higher compared to rosella kombucha.

Phenolic Content and Functional Groups of Green Tea Kombucha, Telang Flower Kombucha, Rosella Flower Kombucha, Chamomile Flower Kombucha, and Lavender Flower Kombucha

Kombucha is a fermentation product between green tea and microorganisms. The basic ingredients for kombucha can be obtained from plants that contain high antioxidants, such as green tea, butterfly pea flowers, rosella flowers, chamomile flowers and lavender flowers. The aim of this research was to determine the phenolic content and functional groups in green tea kombucha, telang flower kombucha, rosella flower kombucha, chamomile flower kombucha and lavender flower kombucha. This research uses experimental research by testing phenolic content using a UV-Vis Spectrophotometer instrument and functional group analysis using Fourier Transform Infrared (FTIR). The results showed that the phenolic content of green tea kombucha was 162.35 mg/L GAE, butterfly pea flower kombucha was 124.46 mg/L GAE, rosella flower kombucha was 101.30 mg/L GAE, chamomile flower kombucha was 35.41 mg/L GAE and lavender flower kombucha was 136.43 mg/L GAE. The highest phenolic content is found in green tea kombucha. The spectra resulting from the identification of telang flower kombucha tea samples contain alcohol functional groups, amines, nitro compounds, and the broad peaks indicate the stretching vibration of OH monometric alcohol. In green tea kombucha, alkenes, alkynes and monometric alcohol groups are found. In rosella flower kombucha, the functional groups alcohol, alkene, alkyne, nitrile and phenol are found. In chamomile flower kombucha, the functional groups ether, amine, alkene, alkyne, ester and alcohol are found. In lavender flower kombucha, the functional groups alcohol, alkene, alkyne and alkane are found. It can be concluded that kombucha contains secondary metabolite compounds including flavonoids, phenolics, saponins, tannins, steroids and triterpenoids.

Analysis of Differences in Functional Groups in Green Tea Kombucha (Camellia sinensis) and Rosella Flower Kombucha (Hibiscus sabdariffa) Using FTIR Spectrophotometer Instrument

Functional groups are groups that determine the properties of organic compounds. Kombucha is a fermented drink made from tea and sugar to which a symbiotic culture of bacteria and yeast (SCOBY) is added. The aim of this study was to analyze the differences in functional groups found in green tea kombucha and rosella flower kombucha (Hibiscus sabdariffa). This research includes experimental research by analyzing functional groups in test samples using the FTIR (Fourier Transform Infrared Spectroscopy) instrument. The results of the study showed that green tea kombucha has functional groups C-N amine, C=C alkene, C=C (triple) alkyne, and O-H alcohol, while the functional groups of rosella kombucha tea are produced as many as 5 functional groups, including the functional group C - O (Alcohol, ether, carboxylic acid, ester).

Microbiological and Hedonic Test of Lanolin Listick with the Addition of Rosella Flower (Hibiscus sabdariffa L) Extract Dye

Microbiological and Hedonic Test of Lanolin Listick with the Addition of Rosella Flower (Hibiscus sabdariffa L) Extract Dye

EFEKTIFITAS KOMBUCHA TEH BUNGA ROSELLA DALAM MENGHAMBAT PERTUMBUHAN BAKTERI ESHERICHIA COLI DAN SHIGELLA DYSENTERIAE UNTUK MENCEGAH TERJADINYA DIARE

One probiotic product is kombucha tea. Kombucha tea can be combined with rosella tea. Some of the bacteria that attack the digestive tract are Escherichia Coli and Shigella dysenteriae which can cause diarrhea. It has been suggested that probiotics can be used to prevent diarrhea. This research aims to determine whether there are probiotic benefits of Rosella flower kombucha fermented for 7 days and 14 days to prevent diarrhea. Review of the growth inhibitory power of Escherichia Coli and Shigella dysenteriae bacteria. This research is in the form of Quasi-experimental. The population of this study was rosella flower kombucha. The sample for this research was rosella flower kombucha with 7 days of fermentation and 14 days of fermentation. The number of repetitions for each treatment was 16 replications, with total replications was 62 replications. The results of this research showed that the inhibitory power of rosella flower kombucha against Shigella dysenteriae bacteria with an average fermentation time of 7 days was 11.31 mm (strong), for 14 days of fermentation the average was 24.72 mm (very strong). Meanwhile, the inhibitory power of rosella flower kombucha against E. Coli bacteria with a fermentation time of 7 days averaged 11.09 mm (strong), for 14-day fermentation, the average was 20.34 mm (very strong). This research concluded that the inhibitory power of rosella flower kombucha fermented for 7 days was in the strong category and 14 days in the very strong category for both the growth of Shigella dysentriae and `E. coli bacteria.

PENYULUHAN DAN PELATIHAN PEMBUATAN SABUN CAIR EKSTRAK BUNGA ROSELLA (Hibiscus Sabdariffa L) DAN MINYAK ATSIRI LEMON (Citrus Limon Burm F) SEBAGAI ANTIBAKTERI DI SMPN 2 MARGAASIH

kin is part of the organ that covers the human body. The skin has many functions such as physical protection, temperature regulation, conductor/receptor of taste sensations, excretion and absorption of substances such as vitamin D. The skin has 3 layers, namely the epidermis, dermis and hypodermis which have special functions and characteristics. Prevention of skin infections can be done by washing the skin using soap that contains antibacterial. The main ingredient used in making soap is Triclocarban, but this ingredient has the side effect of being easily resistant. Therefore, we recommend natural ingredients to avoid resistance, namely using Rosella flowers as an antioxidant and lemons as a germicide and curing irritation. The aim of the activity is to provide training in making antibacterial liquid soap from natural plants as a skin treatment for skin infections that cause disease. The method used is demonstration and presentation of material. Activities were carried out at SMPN 2 Margaasih Kab. Bandung, West Java Province. The activity ran smoothly and received enthusiasm from students, teachers and school staff. From the pre and post test results, it was concluded that there were significant differences after and before the counseling, which means that this counseling and training was useful in increasing insight.

Pengembangan smart edible film packaging berbahan konjac dengan ekstrak bunga rosella dan cangkang telur ayam sebagai bahan aktif

Edible film is a thin sheet plastic-like biodegradable film that can be used for food packaging material. Edible film can be developed into smart edible film packaging by combining it with smart packaging principles by adding active ingredients. This research aimed to determine the effect of different concentrations of rosella flower extract and chicken eggshell powder on the physicochemical characteristics of smart edible film and its capability to act as smart packaging in a model system. The research design used was a Randomized Block Design with two factors, namely three levels of rosella flower extract concentration and three levels of eggshell powder concentration, all with three replications. The concentration of rosella flower extract used as a treatment in this study was 0 (without rosella flower extract) as a control, 1:15 (w/v of water as solvent), and 1:30 (w/v), while the concentration of eggshell powder used as a treatment in this study was 0 (without eggshell powder) as control; 0.15% (w/v); and 0.30% (w/v). The results showed that the higher the extract concentration added to the formulation, the more the total phenols, anthocyanins, and antioxidant activity would increase. In contrast, the difference in eggshell concentration did not have a significant effect. The tensile strength will increase as the eggshell concentration increases, while the percent elongation will decrease. The water vapor transmission rate (WVTR) decreased with increasing eggshell concentration. There is an increase in color intensity in smart edible packaging used to store steamed chicken meat. Meanwhile, smart edible packaging can prevent damage to steamed chicken meat in terms of color, aroma, and taste.

Potential of Polyphenolic Compounds in Rosella Flowers on Reducing Oxidative Stress and Inflammation After Exercise: A Systematic Review

Study purpose. This study aims to analyze and highlight the potential of rosella flowers in reducing oxidative stress and inflammation after physical activity. Materials and methods. The study used a systematic review method by searching various journal databases such as Scopus, Web of Science, Pubmed and Embase. The inclusion criteria in this study were articles published in the last 5 years and articles discussing Rosella Flowers, Oxidative Stress, Free Radicals, Inflammation, and Exercise. The exclusion criteria in this research were articles published in disreputable journals. A total of 357 articles from the Scopus, Web of Science Pubmed and Embase databases were identified. A total of 8 articles that met the inclusion criteria were selected and analyzed for this systematic review. For standard operations, this study followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) assessment. Results. The results of this systematic review research report that the flavonoid content found in rosella flowers has anti-oxidant and anti-inflammatory properties which have the potential to reduce oxidative stress and uncontrolled inflammation caused by physical activity and intense exercise. Conclusions. Rosella flowers show their ability as an anti-oxidative by donating hydrogen atoms to free radicals through phenolic compounds, thus breaking the cycle of ROS formation. The natural active ingredients in rosella flowers are able to reduce MDA and increase GSH which contributes to reducing oxidative stress and decreasing TNF-α which provides an anti-inflammatory effect in athletes after exercise.

Formulation of lotion ethanolic extract of rosella flower petals (Hibiscus sabrariffa L.) and antioxidant activity

Rosella flowers (Hibiscus sabrariffa L.) are plants that are useful as antioxidants. The content that acts as an antioxidant is a flavonoid compound. This study aimed to determine the effect of giving calliandra honey as a multiple active ingredient and single active ingredient (rosella petal extract, calliandra honey ) and ethyl vitamin C as an active ingredient. The lotion of ethanolic extract of rosela flower petals was made with three active ingredients: ethanolic extract of roselle flower petals with a concentration of 2.5%, calliandra honey 2.5%, and ethyl vitamin C 2%. Then, calliandra honey and ethanol extract of roselle flowers are combined with a concentration of extract 2.5% and calliandra honey (1.5%, 2%, and 2.5%). The physical and stability tests are the organoleptic, homogeneity, viscosity, dispersibility, pH, lotion stability, and the value of lotion's antioxidant activity. The activity test was carried out using the 2,2-Diphenyl-1-Picryhidrazil (DPPH) method, and the IC50 of inhibition was calculated. The results of the study showed that all lotion formulations had antioxidant activity. The highest antioxidant activity was obtained in formula three, which had a value of 95.2 ppm (2.5: 2.5 %). Based on the Kruskal Wallis test, the asymp value was obtained. Sig. 0.000, which indicates that there is a significant difference in antioxidant activity. This is because the percent inhibition of each sample has a large enough difference.

Empowerment and training in making herbal tea to utilize herbal plants and prevent degenerative diseases

Teluk Pemedas is one of the sub-districts in the Samboja sub-district, Kutai Kartanegara, East Kalimantan Province. Previous health examination data showed that the presentation of hypertension in the Teluk Pamedas community was 28% and hypercholesterolemia was 20%. The use of herbal plants as an alternative treatment has been widely used. Plants that have antihypertensive and antihypercholesterolemic activity are rosella flowers, pandan leaves, and cinnamon. Research results show that this plant can lower blood pressure for hypertension sufferers. The aim of carrying out this activity is to increase public knowledge about degenerative diseases and the use of local herbal plants to add economic value. This activity was carried out in two stages, with an education method regarding degenerative diseases, then continued with a training method for making herbal tea preparations from a combination of rosella flowers (Hibiscus sabdariffa), pandan leaves (Pandanus amaryllifolius) and cinnamon (Cinnamomum burmanii). The partner of this activity is Dasawisma Teluk Pamedas sub-district, Samboja, Kutai Kartanegara East Kalimantan. This activity provides benefits to the community regarding efforts to prevent degenerative diseases and implement a healthy lifestyle and improve skills in processing herbal plants.

Optimization of Ultrasound Assisted Extraction (UAE) Conditions on Vitamin C from Roselle Flower

Roselle plant (Hibiscus sabdariffa L.) has many benefits. Vitamin C is an antioxidant in which the human body required. It contains a high amount of vitamin C. However, vitamin C is susceptible to high temperatures. Proper extraction treatment conditions produce optimum vitamin C. This study aims to determine the optimization of vitamin C in rosella flowers. This research uses UAE with Qsonica type – Q500 (500 W, 20 kHz). Extraction treatment conditions control amplitude, time and amount of solvent. The research method used is a laboratory experiment with the RSM (Response Surface Methodology) type CCD (Central Composite Design) approach. The research method was an experimental laboratory using a CCD (Central Composite Design) via RSM (Response Surface Methodology) with an amplitude level from 20% to 50%, a time level from 10 minutes to 20 minutes, and a ratio of the amount of solvent from 140 mL to 260 mL by weight. The results showed that the length of time and the amount of solvent had a significant effect, while the amplitude had no significant effect. The significant quadratic model at p value 0.05 and R2 0.9221 with optimum UAE conditions in the treatment combination of 50 percent amplitude, 20 minutes of time, and 140 ml of solvent resulted in an optimum vitamin C content of 38.76 mg/100g. This research can be used as a reference to determine the value of vitamin C with different amplitude, time, and amount of solvent from the research data.

Formulation and Evaluation of Natural Pigmented Lipstick from Roselle Flower and Secang Wood Extracts

Lipstick is a cosmetic product for the lips consisting of pigments, oils, waxes, and moisturizers. Natural lipstick is safe to use and contains natural nutrients to maintain lip health. The use of synthetic dyes in lipstick can have adverse effects on the skin and health; hence, the use of natural dyes from various natural sources needs to be considered. Secang wood and Rosella flowers are plants with important compound contents that have antioxidant properties. Secang wood contains brazilin, alkaloids, flavonoids, saponins, tannins, phenylpropane, and terpenoids. Meanwhile, Rosella flowers that grow in tropical areas have anthocyanin pigments as part of flavonoids that function as antioxidants. This research aims to determine the formulation of lipstick containing extracts of Secang wood and Rosella flowers and to test the antioxidant activity of the preparation. Extraction was carried out by maceration using 70% ethanol solvent. Then, a phytochemical analysis was conducted to determine the extract content, and a lipstick formula was made by comparing the ratio of Rosella and Secang extracts. The optimal formula selection was performed using the Simplex Lattice Design method with quality testing parameters, including pH, melting point, hardness, and antioxidant activity of the preparation. The data analysis showed that the optimal ratio of the two extracts was 2.5% and 7.5% for Rosella and Secang extracts, respectively. At this composition, the optimum pH value was 5, the melting point was 57˚C, the hardness was 1.87 seconds, and the antioxidant activity was classified as strong.

The Effect of Administration of Rosella Flower (Hibiscus Sabdariffa) Extract Gel on The Expression Of TNF-α And Caspase-3 Expression in An In Vivo Study of Wistar Strain Rats Exposed to Ultraviolet B-Lights

UV rays are oxidative because they can produce Reactive Oxygen Species and free radical compounds. The dangers of sun exposure can cause skin disorders such as aging at an early age (photoaging). Rosella flower petals can be used in medicine, jams, and natural food coloring because they contain flavonoids as antioxidants or free radical scavengers. The research aimed to determine the effect of administering Rosella (Hibiscus sabdariffa L.) flower extract gel on TNF-α expression and Caspase-3 expression in an in vivo study of Wistar mice exposed to UVB. This research is an experimental study. The sample for each treatment group consisted of 6 individuals, so the total research sample was 24. Data analysis used descriptive, normality, and homogeneity tests with data analysis processing using SPSS 25.0 for Windows. The study found that administration of rosella flower extract gel with a concentration of 15% effectively reduced the expression of TNF-α and Caspase-3 in mice exposed to UVB light and produced filled and dense collagen. So, it can be concluded that rosella flower extract gel can act as an antioxidant that inhibits the growth of TNF-α and Caspase-3 expression.

Efek Pemberian Ekstrak Etanol Bunga Rosella (Hibiscus sabdariffa L.) terhadap Inflamasi dan Disfungsi Endotel

Obesity can cause enlargement and increase in the number of adipose cells in the body as well as a decrease in adiponectin levels. Adiponectin is an anti-inflammatory cytokine. Obesity is also associated with vascular endothelial dysfunction, which is caused by reduced nitric oxide (NO) availability, as a result of increase production of oxidative stress. This study aims to determine the effect of ethanol extract of rosella flowers (Hibiscus sabdariffa Linn) on adiponectin levels and serum NO levels in animal models of fructose-induced obesity. The research method was using a Post Test Only Control Group Design, using male Wistar rats for 60 days. This study consisted of 6 groups, namely the normal group (normal diet), the induction group (normal diet + fructose 60%), the comparison group (normal diet + fructose 60% + orlistat), and 3 test groups (normal diet + fructose 60% + ethanol extract of rosella flowers 125 mg/ kgBW, 250 mg/kgBW and 500 mg/kgBW). The results show that the ethanol extract of rosella flowers has a reducing effect on body weight and increases serum adiponectin and NO levels. In conclusion, ethanol extract of rosella flowers at a dose of 250 mg/kgBW can increase adiponectin levels and a dose of 500 mg/kgBW is the best dose in improving endothelial dysfunction.