The autumn colours we’re currently enjoying are the ‘big reveal’ of the yellow, orange and red pigments that are normally masked, in summer, by the green of chlorophyll, writes Dr Susan Aldrige, HS guest blogger, freelance writer and editor based in London, with an interest in medicine, health, science and food/nutrition.
In autumn, chlorophyll molecules break down. So, for the next two months, let’s look at the health benefits of the yellows, oranges and reds in fruits and vegetables and make the most of them in my new juice, main and salad recipes.
The yellow, orange and red pigments belong to a family phytochemicals called the carotenoids. They all have strong antioxidant, anti-inflammatory and cancer protective properties. The best-known carotenoids are alpha-carotene, beta-carotene, lutein, zeaxanthin and lycopene, but there are over 600 different pigments in the family, so lots more research to do!
Within the carotenoid family there are two broad groups – the xanthophylls (the yellows) and the carotenes (the oranges). Lutein and zeaxanthin are xanthophylls and are both important for eye health, with research suggesting that a high intake may help reduce the risk of age-related macular degeneration. Yellow fruits are a particularly good source of these phytochemicals. Another of the xanthophylls is beta-cryptoxanthin, which is found in yellow peppers and sweetcorn. Some studies have suggested that beta-cryptoxanthin may be effective in preventing lung cancer.
Carrots are rich in beta-carotene as are mangoes and sweet potatoes. One study suggests that beta-carotene may help reduce the risk of metabolic syndrome. Meanwhile, alpha-carotene has been linked to a reduced risk of death from cancer, heart disease and diabetes, with carrots and tangerines being good sources. We’ll take a closer look at lycopene, a red pigment, in next month’s post.
Super Orange Juice
One yellow (or orange) pepper
One inch peeled ginger
Yellow split pea dahl
100g red lentils
100g yellow split peas
three cloves garlic
Spices include a mixture of black mustard seeds, fennel seeds, cumin seeds, all blasted in a Nutribullet miller or ground in a mortar and pestle, one tsp each of ground turmeric and ground cinnamon
Tbsp chilli jam
Two tbsp. tomato puree
Bag frozen peas or mixed veg
Fry onion and garlic in coconut oil, add spices, tomato puree and chilli jam. Cook for around 10 minutes, until soft. Then stir in the lentils and split peas and add the water. Cook until soft and then add the mixed vegetables, cooking for a few more minutes.
This is a good dish to serve over two days. Day one, add a baked sweet potato and the next day, re-heat and serve with a packet of microwaveable basmati microwave rice (or similar) with some interesting additions (I used one with pinto beans, chilli and lime – there are lots of options). A dollop of mint and cucumber raita and some mango chutney wouldn’t go amiss either.
This is an (almost) all-yellow salad, packed with nutrients and a sweet addition to grilled salmon, smoked salmon or halloumi.
Yellow and orange tomatoes
Mix all ingredients with flaxseed oil and cider vinegar, and decorate with the nasturtium flower.