Brassica oleracea

What's the taxonomical classification of Brassica oleracea?

Brassica oleracea belongs to the kingdom Plantae and is classified under the phylum Streptophyta. Within this lineage, it falls under the class Equisetopsida and the subclass Magnoliidae. Its taxonomic progression continues through the order Brassicales and the family Brassicaceae, eventually reaching the genus Brassica. Finally, it is identified at the species level as oleracea.

Taxonomic Rank Classification
Kingdom Plantae
Phylum Streptophyta
Class Equisetopsida
Subclass Magnoliidae
Order Brassicales
Family Brassicaceae
Genus Brassica
Species oleracea
Evidence Level: ★★★★☆

What are the morphological characteristics of this plant?

Brassica oleracea has a robust, herbaceous structure characterized by thick, fleshy leaves, a central stem that can become woody with age, and terminal clusters of four-petaled yellow flowers. The leaves are typically large, waxy, and possess irregular margins that may be lobed or entire depending on the specific cultivar. Its root system is comprised of a strong taproot that provides stability and nutrient storage for the plant. The reproductive stage features small, cruciform flowers arranged in racemes, which eventually develop into short, cylindrical seed pods known as siliques. These morphological traits allow the plant to store significant energy within its vegetative tissues.

Evidence Level: ★☆☆☆☆

What is the geographical distribution of this plant?

This plant is native to the coastal and lowland regions of Western and Central Europe, ranging from the Atlantic coasts of France and the United Kingdom to parts of the Mediterranean. It thrives in temperate maritime climates where it can find suitable soil along cliffs and riverbanks. Beyond its natural European range, it has been introduced to many other parts of the world through human cultivation and trade. In these new environments, it is often found in various temperate zones across North America and parts of Asia. Its ability to adapt to different soil types allows it to colonize diverse landscapes far from its original habitat.

Evidence Level: ★☆☆☆☆

How is this plant cultivated?

This plant, Brassica oleracea, requires well-drained soil with a pH between 6.0 and 7.5 and consistent moisture to thrive.

Growers typically plant the seeds in early spring or late summer to take advantage of cooler growing temperatures. Providing full sun exposure for at least six hours a day is essential for developing healthy heads or stalks. Adding organic matter to the soil helps supply the nitrogen necessary for vigorous leafy growth.

Regular weeding and pest management are also required to protect the crop from common insects like cabbage worms.

Evidence Level: ★☆☆☆☆

What parts of this plant are used medicinally?

This plant Brassica oleracea provides medicinal benefits through its flower buds, leaves, seeds, shoots, and stems. The nutrient-dense leaves are often utilized to treat inflammation and support digestive health. Medicinal extracts from the seeds can help regulate metabolic functions and provide essential fatty acids. Both the tender shoots and the sturdy stems contain bioactive compounds that may assist in detoxification processes. Additionally, the flower buds offer concentrated antioxidants that support the overall immune system.

According to a study published by "Plant physiology", antibodies recognize two proteins of 96 and 81 kD in the vegetative tissues of Brassica oleracea L. The 96-kD immunoreactive polypeptide was found in two active fractions purified from broccoli flower buds. Within these tissues, the 81-kD protein was more abundant than the 96-kD protein. Additionally, the acidic alpha-glucosidase activity is predominantly located in the outer cortex of broccoli stems and in vascular tissue, especially in leaf traces.

The parts of this plant that are ued medicinally are shown in the list below.

  • flower buds
  • leaf
  • seeds
  • shoot
  • stem
Evidence Level: ★★★☆☆

What traditional systems uses this plant?

This plant, known scientifically as Brassica oleracea, has been utilized for centuries across various global cultures to treat digestive ailments and inflammatory conditions. In Persian Herbal Medicine, it was historically valued for its ability to balance bodily humors and soothe internal discomfort. Ancient European traditions also relied on its leaves to reduce swelling and promote wound healing through topical applications. Many historical practitioners integrated the plant into dietary regimens to support general detoxification and metabolic health. These diverse medicinal practices demonstrate the long-standing recognition of the plant's therapeutic properties in human history.

According to a study published by "Current drug discovery technologies", Brassica oleracea was identified among 15 herbs found to be effective in functional dyspepsia. The researchers searched electronic databases including Pubmed, Scopus, Cochrane, Embase, Web of science and Ovid up until July 2019. Through these strategies, the review identified 34 clinical trials. These studies evaluated various plants and 4 compound herbal remedies. Brassica oleracea is listed as one of the specific herbs used for the treatment of gastrointestinal disorders.

The hystorical systems that uses this plant are shown in the list below.

  • Persian Herbal Medicine
Evidence Level: ★★★☆☆

What are the pharmacological activities of Brassica oleracea?

This plant has potent pharmacological activities including anti-cancer, anti-carcinogenic, anticanceer, cytotoxic activity, and antioxidant properties. The bioactive compounds found within its tissues work to neutralize free radicals, which provides significant antioxidant protection for cells. These chemical constituents also exhibit strong cytotoxic activity by inducing programmed cell death in various tumor cell lines. Furthermore, the plant demonstrates powerful anti-carcinogenic effects by preventing the initial formation of malignant cells. Through these diverse mechanisms, Brassica oleracea serves as a vital subject in nutritional oncology research.

According to a study published by "Cells", 3,3'-diindolylmethane (DIM) is a phytochemical compound derived from Brassica species of cruciferous vegetables. DIM has anti-cancer effects on various cancers including breast cancer, prostate cancer, endometrial cancer, and colon cancer. In the study, DIM significantly suppressed hepatocellular carcinoma cell growth, proliferation, migration, and invasion in a concentration-dependent manner. DIM treatment also activated the caspase-dependent apoptotic pathway and suppressed epithelial-mesenchymal transition via ER stress and unfolded protein response. These results suggest that DIM is a potential anticancer drug for HCC therapy by targeting ER-stress/UPR.

The primary pharmacological activities of this plant are shown in the list below.

  • anti-cancer
  • anti-carcinogenic
  • anticancer
  • cytotoxic activity
  • antioxidant
Evidence Level: ★★★☆☆

What medicinal compounds this plant contains?

This plant contains several potent medicinal compounds including sulforaphane, glucoraphanin, indole-3-carbinol, brassinin, and brassicastrol. Glucoraphanin serves as a precursor that converts into the powerful antioxidant sulforaphane during digestion. Indole-3-carbinol is another significant bioactive molecule known for supporting hormonal balance and cellular health. The alkaloid brassinin provides additional defensive and therapeutic properties within the plant's chemical profile. Finally, the sterol brassicastrol contributes to the diverse nutritional and medicinal complexity of the species.

According to a study published by "Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie", Brassica oleracea is a cruciferous plant that provides the organosulfur compound sulforaphane (SFN). This compound has the potential to treat breast cancer by inhibiting cell proliferation and causing apoptosis. SFN also stops the cell cycle and possesses anti-oxidant activities. The compound effectively affects histone deacetylases involved in chromatin remodeling, gene expression, and Nrf2 anti-oxidant signaling.

The primary medicinal compounds of this plant are shown in the list below.

  • Sulforaphane
  • glucoraphanin
  • indole-3-carbino
  • brassinin
  • brassicasterol
Evidence Level: ★★★☆☆

What health conditions is this plant used for?

This plant is used for the prevention and management of cancer, breast neoplasia, gastric ulcers, liver cancer, and prostate cancer. The bioactive compounds found in its tissues, particularly glucosinolates, play a significant role in inhibiting tumor growth. These phytochemicals are studied for their ability to reduce the risk of developing breast neoplasia and prostate cancer in various clinical models. Additionally, the plant's compounds help protect the digestive lining to mitigate the severity of gastric ulcers. Research also suggests that its nutritional properties may offer defensive mechanisms against the progression of liver cancer.

According to a study published by "Cell biology and toxicology", the plant Brassica oleracea contains bioactive compounds like sulforaphane. These phytochemicals offer a potential approach to cancer prevention and management by targeting epigenetic mechanisms. Such compounds may help suppress cancer cell proliferation through their influence on DNA methylation, histone modifications, and chromatin remodeling. The study explores how these molecules can reverse epigenetic aberrations in cancer cells. These dietary bioactive ingredients aim to influence the mammalian epigenome to create innovative, diet-based anticancer strategies.

The main health conditions this plant is used for are shown in the list below.

  • cancer
  • cancer chemoprevention
  • gastric ulcers
  • peptic ulcer
  • duodenal ulcers
Evidence Level: ★★★☆☆

What are the herbal preparations of this plant?

This plant is Brassica oleracea, which serves as the source for various medicinal preparations including cabbage juice, methanol extract, chloroform fractions, aqueous fraction, and bioconverted product. Cabbage juice is often used directly for its nutritional and soothing properties in traditional applications. Scientists utilize methanol extract to isolate a wide range of bioactive compounds from the plant material. These compounds are further refined into specific chloroform fractions and an aqueous fraction to study their distinct pharmacological activities. Additionally, the development of a bioconverted product through microbial fermentation enhances the bioavailability of its medicinal constituents.

According to a study published by "Analytica chimica acta", cabbage juices were used as a renewable, cheap, and green carbon source and self-passivation agent. A 4-min microwave treatment of these juices resulted in the synthesis of blue emissive S,N-CQDs with a λex/λem of 340/418 nm. These synthesized carbon quantum dots possessed a fluorescence quantum yield of 15.2%. The resulting S,N-CQDs from the cabbage showed high efficiency as a fluorescence probe for the determination of nitazoxanide over a concentration range of 0.25-50.0 μM with an LOD of 0.07 μM. This method utilized the sustainable, widely available, and cheap plant through a low energy and low cost microwave-assisted technique.

The main herbal preparations of this plant are shown in the list below.

  • cabbage juice
  • Methanol extract
  • Chloroform fractions
  • aqueous fraction
  • bioconverted product
Evidence Level: ★★★☆☆

What side effects this plant can have?

This plant can trigger several physiological disruptions including apoptosis, a decrease in mitochondrial transmembrane potential, decreased sleep latency, higher alkaline phosphatase levels, and the induction of reactive oxygen species. The activation of programmed cell death processes through apoptosis can lead to significant tissue damage in certain biological contexts. Furthermore, the reduction in mitochondrial transmembrane potential impairs the energy production capabilities of individual cells. Such metabolic shifts are often accompanied by the induction of reactive oxygen species, which causes oxidative stress throughout the body. These systemic changes may also manifest as higher alkaline phosphatase levels in the blood and altered neurological patterns such as decreased sleep latency.

According to a study published by "Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica", isothiocyanates in Brassica oleracea inhibited the proliferation of HepG-2 cells. When treated for 24 h with 15, 30, 60, 120, and 240 microg x mL(-1) of isothiocyanates, ROS levels were (23.1+/-1.8)%, (53.3+/-3.3)%, (57.9+/-2.0)%, (79.9+/-3.4)%, and (93.4+/-2.6)% respectively. During the same 24 h period, deltapsim values were (94.8+/-5.5)%, (91.8+/-5.4)%, (66.0+/-5.6)%, (65.5+/-6.6)%, and (44.3+/-2.7)% respectively. For 48 h treatments at 60, 120, and 240 microg x mL(-1), cell apoptotic rates reached (16.6+/-2.8)%, (21.9+/-4.4)%, and (70.2+/-5.3)% respectively. These isothiocyanates generate ROS in HepG-2 cells to cause mitochondrial membrane permeabilization and apoptosis.

The main side effects this plant can have are shown in the list below.

  • apoptosis
  • decrease in mitochondrial transmembrane potential
  • decreased sleep latency
  • higher alkaline phosphatase levels
  • induction of reactive oxygen species
Evidence Level: ★★★☆☆

What herbs are paired with Brassica oleracea?

This plant, Brassica oleracea, pairs most effectively with woody or pungent herbs such as rosemary, thyme, sage, and garlic to balance its inherent sulfurous compounds.

When roasting varieties like Brussels sprouts or cauliflower, the earthy notes of sage can enhance the natural sweetness of the vegetable. Thyme and rosemary provide a robust aromatic profile that cuts through the density of cooked cabbage or kale. Adding garlic or crushed mustard seeds can also provide a sharp contrast to the mild bitterness found in many cruciferous greens.

These combinations work by utilizing strong essential oils to complement the complex chemical makeup of the plant.

Evidence Level: ★☆☆☆☆