In fact, the pineapple is not a big fruit, but is made up of many seedless small fruits arranged in a spiral, each pineapple has 100~200 small fruits, which are directly connected to the central core and gathered, and finally form the big pineapple we see.
Image source: Reference[1]
Among fruits, the sweetness of pineapple is quite captivating, not only can the pineapple flesh be eaten, but even the pineapple skin is not wasted, and it is used to make a container for meals, which has a unique flavor!
What is the relationship between pineapple and pineapple?
The question of whether pineapple and pineapple are a fruit or not has been debated endlessly.
Many people may say: "The pineapple on the market is different from the pineapple, the pineapple has thorns,, and has to be soaked in salt water; ”
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It can be understood like this: pineapple is pineapple, and pineapple is pineapple. It's just that the "pineapple" in people's mouths is just a different member of the pineapple family, and the taste is better.
Why do you eat pineapple?
Although the pineapple is sweet and delicious, it is okay to eat less, and if you eat a few more bites, you will obviously feel "pricked" and "inverted", and you will be a little panicked. Why is that?
1 Calcium oxalate needle crystal
The flesh of pineapple contains calcium oxalate needle crystals, which are needle-like or long spindle-shaped with sharp ends at both ends. So we often feel a little "prickly" when we eat pineapple.
2 Bromelain Bromelain is a proteolytic enzyme present in pineapple plants, this protease is not a single component, but a variety of enzymes composed of a variety of enzymes with different molecular weights and molecular structures, belonging to the sulfhydryl protease class.
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That is, "when you eat pineapple, pineapple eats you." "It is precisely because pineapple contains bromelain that it is often regarded as a "natural meat tenderizer powder".
Why don't some pineapples "prick"?
Some researchers compared the differences in bromelain activity between six varieties of pineapple, including Bali, Caine, Golden Diamond Pineapple, Tainong No. 16, Yue Crisp, and Perfume, during the same growth period. The results showed that Bali pineapple had the lowest enzyme activity and the best corresponding taste, and could be eaten without soaking in salt water, while caine pineapple had the highest enzyme activity and was almost inedible without treatment, so it was generally processed into canned food before eating.
What to do with pineapple pricking?
If you want to solve the problem of pineapple pricking, there are really many ways.
1 Cooking process
You can make grilled pineapple or pineapple fried rice, pineapple cooze meat, because bromelain will be inactivated when heated, its optimal temperature is about 40°C, too high or too low temperature will affect the activity of bromelain. Don't worry too much about nutrient loss, after all, the content of vitamin C and B vitamins in pineapple is not high, and it can be supplemented by eating other foods.
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2 Soak in hot water
Cut the pineapple into pieces and soak it in boiling water for a few minutes, because the hot water can inactivate bromelain and dissolve calcium oxalate crystals.
3 Salt water soaking (somewhat useful, but not very recommended)
Soaking pineapple in salt water can reduce the situation of pineapple pricking to a certain extent, but in fact, sprinkling less salt has little effect. The saltiness of salt can reduce the bitterness and enhance the sweetness, which can relieve the discomfort of eating pineapple to a certain extent.
Stock copyright picture, reprinting and using may cause copyright disputes, but some studies believe that the best way to soak pineapple is a sodium chloride solution with a concentration of 7% and a soaking time of 10min. To prepare 7% sodium chloride solution, 35~40g of salt needs to be added to 500mL of water.
Pineapples should be bought thoroughly ripe
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In fact, none of the pineapples we eat are the sweetest, maybe only half of the original sweetness of pineapples. Because pineapples are transported long distances and are generally harvested early, the sugar content is low and the sweetness is not optimal.
When choosing pineapples, choose pineapples with lush leaves, erect leaves, fresh fruits, and heavy touches, and at the same time, you should press them slightly with your fingers to choose slightly soft and elastic ones, which are mostly more ripe.
summary
Pineapple has a unique aroma and a sweet taste. If you're worried about eating pineapple, you can grill pineapple, or opt for Balinese pineapple. Friends who like to plant some flowers and plants, don't throw the tail of the pineapple, find a container to put some water, it looks good to plant, but it's a bit prickly.
bibliography
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