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. Indonesia possesses remarkable biodiversity, including numerous medicinal plant species traditionally employed as natural therapeutic agents. Among these, Cinnamomum iners is widely utilized and is known to contain diverse bioactive compounds with reported antimicrobial, anti-inflammatory, and free radical–scavenging activities. This research focuses onevaluate the antioxidant activity of ethanol, ethyl acetate, and n-hexane extracts of wild cinnamon leaves (Cinnamomum iners) using the ABTS and DPPH methods. Extraction was carried out using the maceration method. The antioxidant effectiveness was measured by analyzing the IC₅₀ values through free radical scavenging activity using the ABTS and DPPH methods with a UV-Vis spectrophotometer. The antioxidant activity of Cinnamomum iners leaves assessed using the ABTS method revealed that the ethanol extract exhibited very strong activity with an IC50 value of 7.56 ppm, followed by the ethyl acetate extract with moderate activity (IC50 103.59 ppm), and the n-hexane extract with weak activity (IC50 188.64 ppm). In contrast, the DPPH assay showed that the ethanol extract demonstrated moderate antioxidant activity with an IC50 value of 168.03 ppm, the ethyl acetate extract exhibited weak activity (IC50 400.5 ppm), and the n-hexane extract displayed no antioxidant activity (IC50 2373.2 ppm).

The smoking habit among teenagers has become a serious health issue, with prevalence continually increasing. Smoking at a young age is associated with various health risks, including cancer, heart disease, and chronic obstructive pulmonary disease. One of the main contributing factors is peer influence and social environment. To reduce smoking habits, innovative approaches are needed, one of which is using innovative candies as an alternative to cigarettes. This study aims to analyze the potential of innovative candies in reducing smoking habits among teenagers. The method used is qualitative research with a literature review, collecting relevant scientific journal articles. The results indicate that candies such as Xylitol chewing gum, milk candy, cinnamon extract, and Vernonia cinerea extract can effectively reduce the frequency of smoking by providing a similar sensation without the negative effects of nicotine. Additionally, these candy products also have added benefits, such as improving oral and respiratory health. In conclusion, innovative candies can be a creative and effective solution to reduce smoking habits among teenagers, but further research is needed to assess their sustainability and long-term effects.

Yangko cake is a semi-wet food made from glutinous rice flour with the addition of a sugar solution. In order to improve the characteristics of the yangko cake, an ingredient is added, namely kidney bean flour and cinnamon extract. Kidney beans are one type of legume that has a high protein source so it can add nutritional value to food products. Kidney bean has an unpleasant taste, therefore it needs to be balanced with the addition of cinnamon extract, which is expected to reduce the unpleasant flavor of the yangko cake which consumers preferred. The experimental design used is a CRD, with the first factor being the ratio of glutinous rice flour and kidney bean flour with a ratio of 90:10, 80:20, and 70:30. The addition of cinnamon extract in various amounts (2 ml, 4 ml, and 6 ml) was the second element. The inclusion of substitute glutinous rice flour and kidney bean flour, coupled with the variation of cinnamon extract produced yangko cake with 3,80% fiber content and 5,76% protein content.  Chemically, physically and organoleptically, the best product from several formulations of the yangko cake was with 70:30 of glutinous rice flour to kidney bean flour and 6 ml of cinnamon extract, with 47.98% water content, 0.66% as content, 31,36% total sugar content and with a hardness of 28.82 N, a gumminess of 4.92 N, a chewiness of 2.28 N then a cohesiveness of 0.64 Ns.  The organoleptic characteristic of the yangko cake was the most preferred by the panelists, with a value of 3,76 (preferred). The yangko cake substitusion of glutinous rice flour and kidney beans with the addition of cinnamon extract is a food ingredient  that has quite high protein and fiber.

Coumarin, a key bioactive compound in cinnamon, is known for its anticoagulant, antibiotic, and anti-carcinogenic properties. This study investigates the potential of cinnamon (Cinnamomum burmanni) extract as a natural anticoagulant using both the Lee-White method, for visual observation of clotting time, and blood smear analysis for microscopic evaluation. The research aims to assess the effectiveness of the extract in preventing blood coagulation compared to untreated blood samples. Results demonstrated that blood without any anticoagulant clotted within an average time of 5 minutes and 33 seconds. In contrast, blood treated with cinnamon extract did not exhibit coagulation, indicating a significant anticoagulant effect. Microscopic examination further supported these findings, as the blood cells in the treated samples appeared separated, with no visible aggregation or linkage between the cells. These findings suggest that cinnamon extract has strong potential as a natural anticoagulant, offering a safer and more accessible alternative to synthetic anticoagulants. Further research could explore its applications in medical treatments, particularly in conditions requiring blood thinning or clot prevention. This study highlights the potential of cinnamon as a valuable bioactive agent in the field of biomedical science, especially for anticoagulation therapies.

Galangal (Kaempferia galanga L) is a plant in the Zingiberaceae family. Galangal is known as a famous traditional medicine in ancient times, kencur is generally used as a medicine for sore throats. Galangal can also be used as a medicine for bloating which can be used by pounding it first or can be consumed directly by chewing. Galangal can be processed first into traditional herbal medicine (kencur rice), processing kencur into traditional herbal medicine itself requires several other additional ingredients, as for the processing method, the galangal rhizome and ginger are washed first, then ground until soft and smooth. Then roast the rice flour and cinnamon, and wash the cardamom and then mash it until smooth, then squeeze it and then extract the juice. Majakerta is a sub-district located in Majalaya sub-district, apart from Majakerta in Majalaya there are also several other sub-districts, namely Biru, Bojong, Majasetra, Neglasari, Padamulya, Padaulu, Sukamaju, Sukamukti, Wangisagara, Cipaku, Rajadesa, and Drawati.  

The study aimed to investigate the alkaloid content in cinnamon (Cinnamomum burmannii) powder using the Soxhlet extraction method. Alkaloids are organic chemical compounds widely found in nature as secondary metabolites in both plants and animals. They possess a cyclic structure containing one or more basic nitrogen atoms, conferring unique basic properties. The research was conducted to provide a deeper understanding of the potential utilization of plant-derived alkaloids, particularly from cinnamon, in drug development. The study sought to determine the color of the precipitate formed in the extraction solution after the addition of Mayer's reagent and to investigate the effect of the number of Soxhlet extraction cycles on the color of the ethanol used in the research with cinnamon samples. The findings from this study contribute to the exploration of the alkaloid content in cinnamon and its potential applications in pharmaceutical development.

This study evaluates the effectiveness of natural materials as antimicrobial agents in the treatment of freshwater fish diseases, with the aim of offering a safer and more sustainable alternative to synthetic chemicals and antibiotics. Using the literature review method, this study analyzed relevant current scientific articles. Results showed that extracts of betel leaf, neem leaf, cinnamon essential oil, basil essential oil, aloe vera, and propolis had significant antimicrobial activity against freshwater fish pathogens such as Flavobacterium columnare and Aeromonas hydrophila. Betel leaf extract and cinnamon essential oil showed inhibition rates of up to 85% and 82%, respectively. The advantages of using natural ingredients include environmental safety, reduced risk of antimicrobial resistance, and immunostimulating effects in fish. However, challenges such as ingredient availability, cost, and standardization still need to be addressed. This study suggests the development of natural ingredient-based products, standardization and quality testing, further research, and training for fish farmers. Collaboration between stakeholders is also important to reduce dependence on antibiotics. In conclusion, natural ingredients have great potential as effective and environmentally friendly antimicrobial agents in freshwater fish health management.