Herbs and plantsBitter orange—the peel we throw away that heals the stomach?
Sources: 5 · Article: 6 944 characters
The unripe fruit is one of the substances that stimulate the secretion of digestive juices; many of them also help relieve gas.
- The peel stimulates the appetite and improves the taste of medicines, while syrup made from it is also used to strengthen and improve the taste of drops and syrups for catarrh of the respiratory tract.
What the authors write
Henryk Różański
The unripe orange fruit is one of the substances that stimulate the appetite and the secretion of digestive juices and support digestion.
„Bitter-aromatic substances—amaro-aromatica—are intended to stimulate the secretion of saliva, gastric, pancreatic and intestinal juices, increase appetite, and stimulate digestion. Many of them help relieve gas. The essential oils and bitter substances found in amaro-aromatica herbs have a synergistic effect on the secretory and absorptive functions of the digestive system. These include Herba Absinthii—wormwood herb, Herba millefolii—yarrow herb, Radix Archangelicae—angelica root, Rhizoma Calami—sweet flag rhizome, Folium Menthae—mint leaf, Flos Naphae (Aurantii)—orange blossom, Radix Colombo, Cortex Cascarillae, Fructus Aurantii immaturus, and others.”Surowce gorzko aromatyczne – amaro-aromatica mają za zadanie pobudzać wydzielanie śliny, soku żołądkowego, trzustkowego i jelitowego, wzmagać apetyt, stymulować trawienie. Wiele z nich działa wiatropędnie. Olejki eteryczne i gorzkie substancje zawarte w ziołach amaro-aromatica wywierają synergistyczny wpływ na czynności sekrecyjno-absorpcyjne układu pokarmowego. Należą tutaj Herba Absinthii – ziele piołunu, Herba millefolii – ziele krwawnika, Radix Archangelicae – korzeń arcydzięgla, Rhizoma Calami – kłącze tataraku, Folium Menthae – liść mięty, Flos Naphae (Aurantii) – kwiat pomarańczy, Radix Colombo, Cortex Cascarillae, Fructus Aurantii immaturus i in.
Henryk Różański
The fruit peel of bitter orange stimulates the appetite and improves the taste of medicines.
„Organic impurities: no more than 0.3%. Mineral impurities: no more than 0.3%. This substance stimulates the appetite and improves the taste of medicines. The usual daily dose is 4–6 g. For infusions. The fruit peel contains flavonoids, including hesperidin and naringin.”Zanieczyszczeń organicznych nie więcej niż 0,3%. Zanieczyszczeń mineralnych nie więcej niż 0,3%. Jest to surowiec pobudzający łaknienie i poprawiający smak leków. Dawki dobowe zwykle stosowane 4-6 g. Do naparów. W składzie owocni stwierdzić można flawonoidy: hesperydynę i narynginę.
Henryk Różański
Bitter orange syrup is used to improve the taste of drops and syrups for catarrh of the respiratory tract, stimulate appetite and digestion, and strengthen the body.
„Use to improve the taste of drops and syrups for catarrh of the respiratory tract, to improve appetite and digestion, and to strengthen the body.
The Polish Pharmacopoeia VI lists a substance called Aurantii Amari Pericarpium, or bitter orange fruit peel, obtained from the ripe fruit of Citrus aurantium Linne subspecies amara Linne, from the Rutaceae family.”Stosować dla poprawienia smaku do kropli i syropów na nieżyty układu oddechowego, dla poprawienia apetytu i trawienia, dla wzmocnienia.
W Farmakopei Polskiej VI jest surowiec o nazwie Aurantii Amari Pericarpium, czyli owocnia pomarańczy gorzkiej, który pochodzi z dojrzałych owoców Citrus aurantium Linne subspecies amara Linne z rodziny Rutaceae.
Research from PubMed · Europe PMC
We selected 2 studies with the best, positive results. This is a selection, not a full review of all research.
Total number of studies on this topic in PubMed: 1 420.
In a cell study, extracts from bitter orange peel and seeds reduced glutamate-induced damage and showed neuroprotective effects.
Aim of the study: Oxidative stress and apoptosis contribute to neuronal degeneration in many neurodegenerative diseases such as Alzheimer's disease. Glutamate is a major excitatory neurotransmitter in the central nervous system (CNS) and is considered responsible for the pathogenesis of many neurological disorders.
Results: Therefore, the present study supports the idea that C. aurantium extracts have neuroprotective effects against glutamate-induced toxicity in the PC12 cell line. The protective effect of C. aurantium might be attributed to its antioxidant properties.
Money for the studynot stated
Do the authors have ties to companies?not stated
Did a manufacturer help with the study?unknown
Type of studyanimal study
“Not stated” does not mean nobody paid — the database does not always record it.
An optimized extraction method using bitter orange by-products produced an extract with high antioxidant activity.
Aim of the study: Citrus aurantium L. by-products are a valuable source of bioactive compounds with potential industrial applications.
Results: The optimal extraction conditions, as obtained by Response Surface Methodology (RSM) for TFC, corresponded to an HBD molar ratio of 1.33 per 1 mol of HBA and 47.48% added water, resulting in an optimal value of 1576.63 ± 4.9 mg quercetin equivalents (QE)/100 g dry mass (DM). Maximum values of 4276.94 ± 25.4 mg gallic acid equivalents (GAE)/100 g DM for TPC, 2077.66 ± 21.3 mg/100 g DM for TAA and 88.09 ± 0.1% inhibition for Ax were also obtained. The optimal NADES was characterized by density, viscosity, pH, Fourier-transform infrared (FTIR) and Raman spectroscopy. Additionally, phenolic profiling revealed high concentrations of hesperidin (2747.1 mg/100 g DM), naringenin (1251.93 mg/100 g DM), and quercetin + luteolin (660.65 mg/100 g DM).
Money for the studygovernment, public institutions · Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, Center for Research and Assistance in Technology and Design of the State of Jalisco. A.C, SECIHTI
Do the authors have ties to companies?no — the authors say so
Did a manufacturer help with the study?NO
Type of studyother
“Not stated” does not mean nobody paid — the database does not always record it.
Perspectives and opinion materials
The content below presents the authors’ opinions, interpretations and hypotheses. It is not treated as equal to scientific studies and systematic reviews.
Orthomolecular Medicine News Service Opinion material
„The Vitamin C Myth
Citrus fruits are almost always cited as the best source of vitamin C. I usually take >10,000 mg of vitamin C (VC) daily as part of my nutritional supplement package. But I don't get my VC from citrus fruits (or any other fruit for the bulk of it) [1]. Plant-based foods—vegetables, fruits, legumes, and grains—have long been promoted as cornerstones of a healthy diet. Mainstream dietary guidelines encourage high intake of fruits and vegetables for their fiber, antioxidants, and vitamins.”The Vitamin C Myth Citrus fruits are almost always quoted as the best source of vitamin C. I usually take >10,000 mg vitamin C (VC) daily as part of my nutritional supplement package. But I don't get my VC from citrus fruits (or any other fruit for the bulk part) [1]. Plant-based foods-vegetables, fruits, legumes, grains-have long been promoted as cornerstones of a healthy diet. Mainstream dietary guidelines encourage high intake of fruits and vegetables for their fiber, antioxidants, and vitamins.
Orthomolecular Medicine News Service Opinion material
„Donin AS, et al., “Fruit, vegetable and vitamin C intakes and plasma vitamin C: cross-sectional associations with insulin resistance and glycaemia in 9-10 year-old children.” Diabetic Medicine 33:3, 307-315, March 2016. Vinson JA, Bose P, “Comparative bioavailability to humans of ascorbic acid alone or in a citrus extract.” American Journal of Clinical Nutrition 48: 601, Sept. 1988. Brody, Jane E., “Deficiencies of vitamins.””Donin AS, et al, Fruit, vegetable and vitamin C intakes and plasma vitamin C: cross-sectional associations with insulin resistance and glycaemia in 9-10 year-old children. Diabetic Medicine 33:3, 307-315, March 2016. Vinson JA, Bose P, Comparative bioavailability to humans of ascorbic acid alone or in a citrus extract. American Journal Clinical Nutrition 48: 601, Sept. 1988. Brody, Jane E., Deficiencies of vitamins.
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