Mustard plants are any of several plant species in the genera Brassica and Sinapis in the family Brassicaceae. Mustard seed is used as a spice ( Collecting Mustard Seeds). Grinding and mixing the seeds with water, vinegar, or other liquids, creates the yellow condiment we buy from the supermarkets. The seeds can also be pressed to make mustard oil, and the leaves can be eaten as mustard greens.
The word mustard is derived from the Latin mustum or must, the grape juice that the Romans mixed with honey and the ground seeds of the mustard plant (sinapi) to create their mustum ardens, or ‘burning must’.
Some varieties of mustard plants were well-established crops in Hellenistic and Roman times but it is historically noted that: “There are almost no archeological records available for any of these crops”. Wild forms of mustard and its relatives, the radish and turnip, can be located in west Asia and Europe, suggesting that their domestication took place somewhere in that area. However, historians have concluded: “Suggestions as to the origins of these plants are necessarily based on linguistic considerations”. Encyclopædia Britannica states that mustard was grown by the Indus Civilisation of 2500-1700 BCE. According to the Saskatchewan Mustard Development Commission, “Some of the earliest known documentation of mustard’s use dates back to Sumerian and Sanskrit texts from 3000 BC”.
The mustard plant was brought to Britain by the Romans via France and there are numerous Roman recipes that use mustard as an ingredient. However serious mustard production was first recorded in France in the 9th century, usually based in religious establishments and this then spread to Britain in the 9th century. By the 14th century mustard was being grown in various parts of the country including the area around Tewkesbury, where the mustard was mixed with horseradish and took the name of the town. Most mustard produced in the Middle Ages was based on using the whole or crushed seeds, mixing them with liquid and letting the mix mature. The mix was often dried, making it easier for transportation, and then liquid added again when required for use.
In the 18th century, with the developments in milling techniques the husks of the seeds could be more easily removed and the seeds finely ground. The first record of the production of mustard flour is credited to Mrs Clements of Durham in 1720 who managed to keep the milling technique used a secret for some time allowing Durham to become the centre of mustard production in the country and allowing herself to accumulate considerable sums of money selling her mustard flour. Once her milling secret was discovered, other entrepreneurs began to invest in mustard production. Most notable in the 19th century was Jeremiah Colman who began milling mustard at his flour mill in Norwich. His mustard became the English mustard, a finely milled flour, yellow in colour (assisted by the addition of turmeric) and very hot in taste.
Mustard is now a world-wide condiment and there are numerous companies involved in making, using and marketing the product. The whole or ground seeds are still an important ingredient in cooking, especially in India and Asia, while in Europe and the Americas the processed seeds are still used as a table condiment.
There are three main varieties: white (Brassica alba) brown (Brassica juncea) and black (Brassica nigra).
Recent research has studied varieties of mustards with high oil contents for use in the production of biodiesel, a renewable liquid fuel similar to diesel fuel. The biodiesel made from mustard oil has good cold flow properties and cetane ratings. The leftover meal after pressing out he oil has also been found to be an effective pesticide.
We use mustard as green manure. Green manure is created by leaving uprooted or sown crop parts to wither on a field so that they serve as a mulch and soil amendment. Typically, they are ploughed under and incorporated into the soil while green or shortly after flowering. Green manure is commonly associated with organic farming and can play an important role in sustainable annual cropping systems.The value of green manure was recognized by farmers in India for thousands of years, as mentioned in treatises like Vrikshayurveda. In Ancient Greece too, farmers ploughed broad bean plants into the soil. Chinese agricultural texts dating back hundreds of years refer to the importance of grasses and weeds in providing nutrients for farm soil. It was also known to early North American colonists arriving from Europe. Common colonial green manure crops were rye, buckwheat and oats. Incorporation of green manures into a farming system can drastically reduce, if not eliminate, the need for additional products such as supplemental fertilizers and pesticides.
Benefits of using mustard or any other crop as a green manure:
- When allowed to flower, the crop provides forage for pollinating insects. Green manure crops also often provide habitat for predatory beneficial insects, which allow for a reduction in the application of insecticides where cover crops are planted.
- Suppresses other weeds from growing.
- Green manure acts mainly as soil-acidifying matter to decrease the alkalinity/pH of alkali soils by generating humic acid and acetic acid.
- Incorporation of cover crops into the soil allows the nutrients held within the green manure to be released and made available to the succeeding crops. This results from an increase in abundance of soil microorganisms from the degradation of plant material that aid in the decomposition of this fresh material.
- Releases nutrients that improves the soil structure.
- Reduces likeliness of plant or insect disease, notably verticillium wilt of potatoes.
- Controls erosion.
- Used for animal grazing, especially poultry.
- Contains nitrogen that fertilises the soil without the need of commercial products.
So I’ve continued to harvest mustard seeds to put in homemade curries, but my mum has gone one step further – she has started harvesting little young mustards and adding them to her egg sandwiches at lunch time. Here is her recipe:
Egg and Mustard Green Sandwich
-1 egg -2 slices of bread (or 1 large cut in half) -Butter -1 tbsp mayonnaise -1 handful of mustard -Lettuce, tomatoes or other salad, to serve
- Bring a pan of water to the boil. Stick a pin into the top of the egg and remove. Put the egg into the pan of boiling water and leave until it has become a hard boiled egg (completely solid). This could be between 5-10 minutes.
- Remove from the heat, drain the hot water and cover the egg in cold water, leaving it to cool.
- Spread butter over the bread so that both halves of the bread are covered on one side.
- Once cold, remove the egg from the pan and peel away the shell. Cut the egg into thin slices, then dice so that it is in lots of cubes.
- Mix the egg into the mayonnaise and then spread over the buttered bread. Add the mustard greens on top. Close the sandwich and serve with salad.