Purple Yam

Scientific Name: Dioscorea alata

Other name: Ube or greater yam

Description: Purple yam is a tuberous root vegetable known for its striking purple color. It's a staple in various cuisines, particularly in Asian and African countries and have numerous health benefits. They are a versatile and nutritious addition to the diet, offering both medicinal and culinary benefits. They can be boiled, baked, roasted, or added to desserts like cakes and sweet pastries due to their naturally sweet taste and vibrant color. The skin is rough, greyish-brown; while the heart-shaped leaves grow on slender stems rising from long, creeping vines.

Parts Used:

Tuber (Root): The most commonly used part of the purple yam for medicinal purposes. It's rich in nutrients and antioxidants.

Medicinal Uses and Properties:

Antioxidant Properties: Purple yams are high in antioxidants, which help combat oxidative stress and may reduce the risk of certain chronic diseases.

Anti-inflammatory Effects: They may help reduce inflammation in the body, which is beneficial for conditions like arthritis.

Blood Sugar Regulation: Some studies suggest that purple yam can help in managing blood sugar levels, making it beneficial for diabetic patients.

Digestive Health: Being a good source of fiber, purple yams can promote healthy digestion and prevent constipation.

Nutrition Profile:

Rich in carbohydrates, fiber, vitamins (especially vitamin C and some B vitamins), and minerals (like potassium, manganese, and copper). Low in fat.

Health Benefits:

Cardiovascular Health: The fiber and antioxidants in purple yam can contribute to heart health by lowering cholesterol levels and improving circulation.

Immune Boosting: Its high vitamin C content supports the immune system.

Skin Health: Antioxidants in purple yams, like anthocyanins, may benefit skin health by preventing signs of aging and improving skin texture.

Cancer Prevention: Early research suggests that the antioxidants in purple yam may have anti-cancer properties, although more research is needed in this area.

Bone Health: Purple yams are a good source of minerals like zinc and magnesium, which are important for bone health.

Weight Management: The fiber content in purple yams can promote a feeling of fullness, potentially aiding in weight control.

Precautions:

While purple yams are generally considered safe, excessive consumption can lead to gastrointestinal issues due to their high fiber content.

People with a history of oxalate-containing kidney stones should consume them in moderation, as yams contain oxalates. The leaves, stems, petioles of Dioscorea alata are not edible. Only the flesh of the tuber is edible.    

Maranta Arrowroot

Scientific name:  Maranta arundinacea

Other names: Uraro, obedience plant, bermuda arrowroot, araru, araruta, ararao and hulankeeriya

Description:

Maranta Arrowroot is a fascinating plant with multiple facets. It thrives in the humid rainforests of the Americas, but its cultivation extends worldwide for its valuable starch, ornamental appeal, and even medicinal properties. Let's delve into the details of this remarkable plant:

Stature: A perennial herb reaching a height of 0.3 to 1.5 meters (1 to 5 feet).

Leaves: Elongated and ovate, with prominent veins and a waxy sheen. They fold upwards at night, resembling praying hands, hence the nickname "prayer plant."

Rhizomes: Fleshy underground tubers, the source of arrowroot starch and responsible for the plant's resilience.

Flowers: Inconspicuous clusters of small white blooms appearing sporadically.

Medicinal properties and uses:

Starch: The primary value lies in its easily digestible starch extracted from the rhizomes. This flavorless and hypoallergenic starch finds application in thickening sauces, soups, and baby food. It's also used in gluten-free baking and medicines for its soothing properties.

Ornamental: With its vibrant foliage and compact growth, maranta arrowroot is a popular houseplant. Numerous cultivars boast stunning variegation and patterns, adding a touch of the tropics to any indoor space.

                                                                credit: Istock photo

Medicinal: Traditionally, various parts of the plant have been used to treat ailments like diarrhea, stomach ulcers, and skin infections. Research is ongoing to validate these claims scientifically.

Arrowroot, also known as "Uraro" in some cultures, is a starch obtained from the rhizomes of several tropical plants, traditionally Maranta arundinacea. It's known for its culinary uses as well as its medicinal properties. 

Digestive Health: Arrowroot is easily digestible and is often used in food for people recovering from illness. It's a popular choice for infants and people with digestive issues. It can help alleviate diarrhea and constipation and is used in the treatment of irritable bowel syndrome.

Gluten-Free: Being naturally gluten-free, it's a suitable starch for people with celiac disease or gluten intolerance.

Soothing Agent: Arrowroot is known for its cooling and soothing properties. It's often applied to irritated areas of the skin, such as where rashes or sores have formed.

Nutritional Value: It's a good source of carbohydrates and provides moderate amounts of minerals like potassium, iron, and B vitamins.

Metabolic Processes: The B vitamins in arrowroot aid in metabolic processes, including B-vitamin-dependent enzyme reactions.

Weight Management: As a low-calorie starch, arrowroot can be a part of a weight management diet.

Vegan and Paleo Diet Friendly: It's a popular thickener and binding agent in vegan and paleo diets.

Immune System Support: Arrowroot contains several minerals that are essential for maintaining good health and boosting the immune system.

Circulatory Health: The potassium content in arrowroot can help in maintaining healthy blood pressure levels by relaxing blood vessels and arteries.

Interesting facts:

The genus name "Maranta" honors Bartolomeo Maranta, an Italian physician and botanist who studied the plant in the 16th century.

The common name "arrowroot" supposedly originated from the Carib word "araru," meaning "meal" or "flour."

Maranta arrowroot exhibits a unique phenomenon called nyctinasty, where the leaves fold upwards at night and unfold at dawn. This movement is thought to conserve moisture and protect the leaves from herbivores.

Caring for maranta arrowroot:

These plants thrive in bright, indirect sunlight and well-draining soil.

Maintain moderate soil moisture but avoid overwatering, as they are susceptible to root rot.

Misting the leaves regularly helps maintain humidity, especially in dry climates.

Fertilize lightly during the growing season and reduce or stop during winter.

Overall, the maranta arrowroot is a versatile plant with much to offer. Whether you're looking for a culinary source of valuable starch, a captivating houseplant for your home, or a glimpse into the wonders of the rainforest, this tropical gem has something for everyone.

Precaution:

Remember that while arrowroot has these beneficial properties, it should not replace professional medical advice or treatment. Its effectiveness can vary depending on the individual and the specific health issue. For serious health concerns, consulting a healthcare professional is always recommended.